Home / 22,781.11-31,437.70-12,572.23

Finding the Fourth Proportional to 22,781.11, 31,437.70 and 12,572.23

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Solution

The fourth proportional to 22,781.11, 31,437.70 and 12,572.23 is: 17,349.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,781.11 : 31,437.70 = 12,572.23 : x
  2. Step 2: Convert to fraction form
    22,781.11/31,437.70 = 12,572.23/x
  3. Step 3: Cross multiply
    22,781.11x = 31,437.70 × 12,572.23
  4. Step 4: Simplify right side
    22,781.11x = 395,241,995.07
  5. Step 5: Solve for x
    x = 395,241,995.07/22,781.11
  6. Step 6: Final answer
    x = 17,349.55

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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.