Home / 22,507.64-31,061.76-13,557.92

Finding the Fourth Proportional to 22,507.64, 31,061.76 and 13,557.92

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Solution

The fourth proportional to 22,507.64, 31,061.76 and 13,557.92 is: 18,710.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,507.64 : 31,061.76 = 13,557.92 : x
  2. Step 2: Convert to fraction form
    22,507.64/31,061.76 = 13,557.92/x
  3. Step 3: Cross multiply
    22,507.64x = 31,061.76 × 13,557.92
  4. Step 4: Simplify right side
    22,507.64x = 421,132,857.14
  5. Step 5: Solve for x
    x = 421,132,857.14/22,507.64
  6. Step 6: Final answer
    x = 18,710.66

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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.