Home / 39,200.12-54,096.56-21,295.28

Finding the Fourth Proportional to 39,200.12, 54,096.56 and 21,295.28

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Solution

The fourth proportional to 39,200.12, 54,096.56 and 21,295.28 is: 29,387.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,200.12 : 54,096.56 = 21,295.28 : x
  2. Step 2: Convert to fraction form
    39,200.12/54,096.56 = 21,295.28/x
  3. Step 3: Cross multiply
    39,200.12x = 54,096.56 × 21,295.28
  4. Step 4: Simplify right side
    39,200.12x = 1,152,001,392.24
  5. Step 5: Solve for x
    x = 1,152,001,392.24/39,200.12
  6. Step 6: Final answer
    x = 29,387.70

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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.