Home / 22,871.16-31,538.97-15,316.29

Finding the Fourth Proportional to 22,871.16, 31,538.97 and 15,316.29

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Solution

The fourth proportional to 22,871.16, 31,538.97 and 15,316.29 is: 21,120.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,871.16 : 31,538.97 = 15,316.29 : x
  2. Step 2: Convert to fraction form
    22,871.16/31,538.97 = 15,316.29/x
  3. Step 3: Cross multiply
    22,871.16x = 31,538.97 × 15,316.29
  4. Step 4: Simplify right side
    22,871.16x = 483,060,010.82
  5. Step 5: Solve for x
    x = 483,060,010.82/22,871.16
  6. Step 6: Final answer
    x = 21,120.92

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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.