Home / 40,711.24-61,076.40-12,629.86

Finding the Fourth Proportional to 40,711.24, 61,076.40 and 12,629.86

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Solution

The fourth proportional to 40,711.24, 61,076.40 and 12,629.86 is: 18,947.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,711.24 : 61,076.40 = 12,629.86 : x
  2. Step 2: Convert to fraction form
    40,711.24/61,076.40 = 12,629.86/x
  3. Step 3: Cross multiply
    40,711.24x = 61,076.40 × 12,629.86
  4. Step 4: Simplify right side
    40,711.24x = 771,386,381.30
  5. Step 5: Solve for x
    x = 771,386,381.30/40,711.24
  6. Step 6: Final answer
    x = 18,947.75

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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.