Home / 39,228.39-54,132.93-21,323.25

Finding the Fourth Proportional to 39,228.39, 54,132.93 and 21,323.25

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Solution

The fourth proportional to 39,228.39, 54,132.93 and 21,323.25 is: 29,424.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,228.39 : 54,132.93 = 21,323.25 : x
  2. Step 2: Convert to fraction form
    39,228.39/54,132.93 = 21,323.25/x
  3. Step 3: Cross multiply
    39,228.39x = 54,132.93 × 21,323.25
  4. Step 4: Simplify right side
    39,228.39x = 1,154,289,999.62
  5. Step 5: Solve for x
    x = 1,154,289,999.62/39,228.39
  6. Step 6: Final answer
    x = 29,424.86

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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.