Home / 39,241.50-54,152.28-21,336.12

Finding the Fourth Proportional to 39,241.50, 54,152.28 and 21,336.12

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Solution

The fourth proportional to 39,241.50, 54,152.28 and 21,336.12 is: 29,443.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,241.50 : 54,152.28 = 21,336.12 : x
  2. Step 2: Convert to fraction form
    39,241.50/54,152.28 = 21,336.12/x
  3. Step 3: Cross multiply
    39,241.50x = 54,152.28 × 21,336.12
  4. Step 4: Simplify right side
    39,241.50x = 1,155,399,544.35
  5. Step 5: Solve for x
    x = 1,155,399,544.35/39,241.50
  6. Step 6: Final answer
    x = 29,443.31

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Half scale
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Double scale
Find fourth proportional to 39,242.50, 54,153.66 and 21,337.12
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.