Home / 39,241.30-54,151.50-21,336.32

Finding the Fourth Proportional to 39,241.30, 54,151.50 and 21,336.32

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Solution

The fourth proportional to 39,241.30, 54,151.50 and 21,336.32 is: 29,443.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,241.30 : 54,151.50 = 21,336.32 : x
  2. Step 2: Convert to fraction form
    39,241.30/54,151.50 = 21,336.32/x
  3. Step 3: Cross multiply
    39,241.30x = 54,151.50 × 21,336.32
  4. Step 4: Simplify right side
    39,241.30x = 1,155,393,880.18
  5. Step 5: Solve for x
    x = 1,155,393,880.18/39,241.30
  6. Step 6: Final answer
    x = 29,443.31

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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.