Home / 31,877.17-43,989.87-17,729.71

Finding the Fourth Proportional to 31,877.17, 43,989.87 and 17,729.71

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Solution

The fourth proportional to 31,877.17, 43,989.87 and 17,729.71 is: 24,466.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,877.17 : 43,989.87 = 17,729.71 : x
  2. Step 2: Convert to fraction form
    31,877.17/43,989.87 = 17,729.71/x
  3. Step 3: Cross multiply
    31,877.17x = 43,989.87 × 17,729.71
  4. Step 4: Simplify right side
    31,877.17x = 779,927,638.04
  5. Step 5: Solve for x
    x = 779,927,638.04/31,877.17
  6. Step 6: Final answer
    x = 24,466.65

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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.