Home / 20,158.76-30,241.28-10,292.70

Finding the Fourth Proportional to 20,158.76, 30,241.28 and 10,292.70

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Solution

The fourth proportional to 20,158.76, 30,241.28 and 10,292.70 is: 15,440.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,158.76 : 30,241.28 = 10,292.70 : x
  2. Step 2: Convert to fraction form
    20,158.76/30,241.28 = 10,292.70/x
  3. Step 3: Cross multiply
    20,158.76x = 30,241.28 × 10,292.70
  4. Step 4: Simplify right side
    20,158.76x = 311,264,422.66
  5. Step 5: Solve for x
    x = 311,264,422.66/20,158.76
  6. Step 6: Final answer
    x = 15,440.65

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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.