Home / 25,631.91-38,454.69-8,101.74

Finding the Fourth Proportional to 25,631.91, 38,454.69 and 8,101.74

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Solution

The fourth proportional to 25,631.91, 38,454.69 and 8,101.74 is: 12,154.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,631.91 : 38,454.69 = 8,101.74 : x
  2. Step 2: Convert to fraction form
    25,631.91/38,454.69 = 8,101.74/x
  3. Step 3: Cross multiply
    25,631.91x = 38,454.69 × 8,101.74
  4. Step 4: Simplify right side
    25,631.91x = 311,549,900.16
  5. Step 5: Solve for x
    x = 311,549,900.16/25,631.91
  6. Step 6: Final answer
    x = 12,154.77

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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.