Home / 39,641.29-54,704.55-21,736.24

Finding the Fourth Proportional to 39,641.29, 54,704.55 and 21,736.24

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Solution

The fourth proportional to 39,641.29, 54,704.55 and 21,736.24 is: 29,995.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,641.29 : 54,704.55 = 21,736.24 : x
  2. Step 2: Convert to fraction form
    39,641.29/54,704.55 = 21,736.24/x
  3. Step 3: Cross multiply
    39,641.29x = 54,704.55 × 21,736.24
  4. Step 4: Simplify right side
    39,641.29x = 1,189,071,227.89
  5. Step 5: Solve for x
    x = 1,189,071,227.89/39,641.29
  6. Step 6: Final answer
    x = 29,995.78

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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.