Home / 31,939.40-47,916.30-9,753.80

Finding the Fourth Proportional to 31,939.40, 47,916.30 and 9,753.80

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Solution

The fourth proportional to 31,939.40, 47,916.30 and 9,753.80 is: 14,632.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,939.40 : 47,916.30 = 9,753.80 : x
  2. Step 2: Convert to fraction form
    31,939.40/47,916.30 = 9,753.80/x
  3. Step 3: Cross multiply
    31,939.40x = 47,916.30 × 9,753.80
  4. Step 4: Simplify right side
    31,939.40x = 467,366,006.94
  5. Step 5: Solve for x
    x = 467,366,006.94/31,939.40
  6. Step 6: Final answer
    x = 14,632.90

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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.