Home / 39,292.02-54,221.40-21,387.24

Finding the Fourth Proportional to 39,292.02, 54,221.40 and 21,387.24

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Solution

The fourth proportional to 39,292.02, 54,221.40 and 21,387.24 is: 29,513.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,292.02 : 54,221.40 = 21,387.24 : x
  2. Step 2: Convert to fraction form
    39,292.02/54,221.40 = 21,387.24/x
  3. Step 3: Cross multiply
    39,292.02x = 54,221.40 × 21,387.24
  4. Step 4: Simplify right side
    39,292.02x = 1,159,646,094.94
  5. Step 5: Solve for x
    x = 1,159,646,094.94/39,292.02
  6. Step 6: Final answer
    x = 29,513.53

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Double scale
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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.