Home / 25,630.20-38,443.68-11,591.28

Finding the Fourth Proportional to 25,630.20, 38,443.68 and 11,591.28

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Solution

The fourth proportional to 25,630.20, 38,443.68 and 11,591.28 is: 17,386.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,630.20 : 38,443.68 = 11,591.28 : x
  2. Step 2: Convert to fraction form
    25,630.20/38,443.68 = 11,591.28/x
  3. Step 3: Cross multiply
    25,630.20x = 38,443.68 × 11,591.28
  4. Step 4: Simplify right side
    25,630.20x = 445,611,459.11
  5. Step 5: Solve for x
    x = 445,611,459.11/25,630.20
  6. Step 6: Final answer
    x = 17,386.19

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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.