Home / 31,487.36-47,000.68-27,750.78

Finding the Fourth Proportional to 31,487.36, 47,000.68 and 27,750.78

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Solution

The fourth proportional to 31,487.36, 47,000.68 and 27,750.78 is: 41,423.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,487.36 : 47,000.68 = 27,750.78 : x
  2. Step 2: Convert to fraction form
    31,487.36/47,000.68 = 27,750.78/x
  3. Step 3: Cross multiply
    31,487.36x = 47,000.68 × 27,750.78
  4. Step 4: Simplify right side
    31,487.36x = 1,304,305,461.15
  5. Step 5: Solve for x
    x = 1,304,305,461.15/31,487.36
  6. Step 6: Final answer
    x = 41,423.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.