Home / 25,711.72-38,557.74-12,382.36

Finding the Fourth Proportional to 25,711.72, 38,557.74 and 12,382.36

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Solution

The fourth proportional to 25,711.72, 38,557.74 and 12,382.36 is: 18,568.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,711.72 : 38,557.74 = 12,382.36 : x
  2. Step 2: Convert to fraction form
    25,711.72/38,557.74 = 12,382.36/x
  3. Step 3: Cross multiply
    25,711.72x = 38,557.74 × 12,382.36
  4. Step 4: Simplify right side
    25,711.72x = 477,435,817.47
  5. Step 5: Solve for x
    x = 477,435,817.47/25,711.72
  6. Step 6: Final answer
    x = 18,568.80

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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.