Home / 25,580.91-38,371.52-10,780.39

Finding the Fourth Proportional to 25,580.91, 38,371.52 and 10,780.39

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Solution

The fourth proportional to 25,580.91, 38,371.52 and 10,780.39 is: 16,170.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,580.91 : 38,371.52 = 10,780.39 : x
  2. Step 2: Convert to fraction form
    25,580.91/38,371.52 = 10,780.39/x
  3. Step 3: Cross multiply
    25,580.91x = 38,371.52 × 10,780.39
  4. Step 4: Simplify right side
    25,580.91x = 413,660,025.41
  5. Step 5: Solve for x
    x = 413,660,025.41/25,580.91
  6. Step 6: Final answer
    x = 16,170.65

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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.