Home / 31,426.71-47,148.17-9,240.81

Finding the Fourth Proportional to 31,426.71, 47,148.17 and 9,240.81

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Solution

The fourth proportional to 31,426.71, 47,148.17 and 9,240.81 is: 13,863.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,426.71 : 47,148.17 = 9,240.81 : x
  2. Step 2: Convert to fraction form
    31,426.71/47,148.17 = 9,240.81/x
  3. Step 3: Cross multiply
    31,426.71x = 47,148.17 × 9,240.81
  4. Step 4: Simplify right side
    31,426.71x = 435,687,234.61
  5. Step 5: Solve for x
    x = 435,687,234.61/31,426.71
  6. Step 6: Final answer
    x = 13,863.60

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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.