Home / 25,097.62-34,620.24-15,649.78

Finding the Fourth Proportional to 25,097.62, 34,620.24 and 15,649.78

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Solution

The fourth proportional to 25,097.62, 34,620.24 and 15,649.78 is: 21,587.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,097.62 : 34,620.24 = 15,649.78 : x
  2. Step 2: Convert to fraction form
    25,097.62/34,620.24 = 15,649.78/x
  3. Step 3: Cross multiply
    25,097.62x = 34,620.24 × 15,649.78
  4. Step 4: Simplify right side
    25,097.62x = 541,799,139.55
  5. Step 5: Solve for x
    x = 541,799,139.55/25,097.62
  6. Step 6: Final answer
    x = 21,587.67

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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.