Home / 31,912.38-47,868.57-14,387.22

Finding the Fourth Proportional to 31,912.38, 47,868.57 and 14,387.22

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Solution

The fourth proportional to 31,912.38, 47,868.57 and 14,387.22 is: 21,580.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,912.38 : 47,868.57 = 14,387.22 : x
  2. Step 2: Convert to fraction form
    31,912.38/47,868.57 = 14,387.22/x
  3. Step 3: Cross multiply
    31,912.38x = 47,868.57 × 14,387.22
  4. Step 4: Simplify right side
    31,912.38x = 688,695,647.68
  5. Step 5: Solve for x
    x = 688,695,647.68/31,912.38
  6. Step 6: Final answer
    x = 21,580.83

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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.