Home / 31,537.92-47,302.30-10,187.78

Finding the Fourth Proportional to 31,537.92, 47,302.30 and 10,187.78

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Solution

The fourth proportional to 31,537.92, 47,302.30 and 10,187.78 is: 15,280.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,537.92 : 47,302.30 = 10,187.78 : x
  2. Step 2: Convert to fraction form
    31,537.92/47,302.30 = 10,187.78/x
  3. Step 3: Cross multiply
    31,537.92x = 47,302.30 × 10,187.78
  4. Step 4: Simplify right side
    31,537.92x = 481,905,425.89
  5. Step 5: Solve for x
    x = 481,905,425.89/31,537.92
  6. Step 6: Final answer
    x = 15,280.19

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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.