Home / 22,681.71-31,283.40-20,132.13

Finding the Fourth Proportional to 22,681.71, 31,283.40 and 20,132.13

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Solution

The fourth proportional to 22,681.71, 31,283.40 and 20,132.13 is: 27,766.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,681.71 : 31,283.40 = 20,132.13 : x
  2. Step 2: Convert to fraction form
    22,681.71/31,283.40 = 20,132.13/x
  3. Step 3: Cross multiply
    22,681.71x = 31,283.40 × 20,132.13
  4. Step 4: Simplify right side
    22,681.71x = 629,801,475.64
  5. Step 5: Solve for x
    x = 629,801,475.64/22,681.71
  6. Step 6: Final answer
    x = 27,766.93

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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.