Home / 31,545.42-47,312.58-11,550.78

Finding the Fourth Proportional to 31,545.42, 47,312.58 and 11,550.78

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Solution

The fourth proportional to 31,545.42, 47,312.58 and 11,550.78 is: 17,324.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,545.42 : 47,312.58 = 11,550.78 : x
  2. Step 2: Convert to fraction form
    31,545.42/47,312.58 = 11,550.78/x
  3. Step 3: Cross multiply
    31,545.42x = 47,312.58 × 11,550.78
  4. Step 4: Simplify right side
    31,545.42x = 546,497,202.81
  5. Step 5: Solve for x
    x = 546,497,202.81/31,545.42
  6. Step 6: Final answer
    x = 17,324.14

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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.