Home / 22,781.06-31,437.90-13,349.63

Finding the Fourth Proportional to 22,781.06, 31,437.90 and 13,349.63

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Solution

The fourth proportional to 22,781.06, 31,437.90 and 13,349.63 is: 18,422.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,781.06 : 31,437.90 = 13,349.63 : x
  2. Step 2: Convert to fraction form
    22,781.06/31,437.90 = 13,349.63/x
  3. Step 3: Cross multiply
    22,781.06x = 31,437.90 × 13,349.63
  4. Step 4: Simplify right side
    22,781.06x = 419,684,332.98
  5. Step 5: Solve for x
    x = 419,684,332.98/22,781.06
  6. Step 6: Final answer
    x = 18,422.51

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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.