Home / 31,586.38-47,354.60-11,862.76

Finding the Fourth Proportional to 31,586.38, 47,354.60 and 11,862.76

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Solution

The fourth proportional to 31,586.38, 47,354.60 and 11,862.76 is: 17,784.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,586.38 : 47,354.60 = 11,862.76 : x
  2. Step 2: Convert to fraction form
    31,586.38/47,354.60 = 11,862.76/x
  3. Step 3: Cross multiply
    31,586.38x = 47,354.60 × 11,862.76
  4. Step 4: Simplify right side
    31,586.38x = 561,756,254.70
  5. Step 5: Solve for x
    x = 561,756,254.70/31,586.38
  6. Step 6: Final answer
    x = 17,784.76

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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.