Home / 31,451.18-47,180.07-15,660.12

Finding the Fourth Proportional to 31,451.18, 47,180.07 and 15,660.12

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Solution

The fourth proportional to 31,451.18, 47,180.07 and 15,660.12 is: 23,491.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,451.18 : 47,180.07 = 15,660.12 : x
  2. Step 2: Convert to fraction form
    31,451.18/47,180.07 = 15,660.12/x
  3. Step 3: Cross multiply
    31,451.18x = 47,180.07 × 15,660.12
  4. Step 4: Simplify right side
    31,451.18x = 738,845,557.81
  5. Step 5: Solve for x
    x = 738,845,557.81/31,451.18
  6. Step 6: Final answer
    x = 23,491.83

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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.