Home / 25,920.24-35,770.68-15,310.32

Finding the Fourth Proportional to 25,920.24, 35,770.68 and 15,310.32

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Solution

The fourth proportional to 25,920.24, 35,770.68 and 15,310.32 is: 21,128.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,920.24 : 35,770.68 = 15,310.32 : x
  2. Step 2: Convert to fraction form
    25,920.24/35,770.68 = 15,310.32/x
  3. Step 3: Cross multiply
    25,920.24x = 35,770.68 × 15,310.32
  4. Step 4: Simplify right side
    25,920.24x = 547,660,557.42
  5. Step 5: Solve for x
    x = 547,660,557.42/25,920.24
  6. Step 6: Final answer
    x = 21,128.68

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.