Home / 31,622.08-47,432.56-18,314.88

Finding the Fourth Proportional to 31,622.08, 47,432.56 and 18,314.88

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Solution

The fourth proportional to 31,622.08, 47,432.56 and 18,314.88 is: 27,472.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,622.08 : 47,432.56 = 18,314.88 : x
  2. Step 2: Convert to fraction form
    31,622.08/47,432.56 = 18,314.88/x
  3. Step 3: Cross multiply
    31,622.08x = 47,432.56 × 18,314.88
  4. Step 4: Simplify right side
    31,622.08x = 868,721,644.49
  5. Step 5: Solve for x
    x = 868,721,644.49/31,622.08
  6. Step 6: Final answer
    x = 27,472.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.