Home / 21,535.38-29,711.48-13,463.51

Finding the Fourth Proportional to 21,535.38, 29,711.48 and 13,463.51

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Solution

The fourth proportional to 21,535.38, 29,711.48 and 13,463.51 is: 18,575.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,535.38 : 29,711.48 = 13,463.51 : x
  2. Step 2: Convert to fraction form
    21,535.38/29,711.48 = 13,463.51/x
  3. Step 3: Cross multiply
    21,535.38x = 29,711.48 × 13,463.51
  4. Step 4: Simplify right side
    21,535.38x = 400,020,592.22
  5. Step 5: Solve for x
    x = 400,020,592.22/21,535.38
  6. Step 6: Final answer
    x = 18,575.04

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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.