Home / 20,082.45-30,125.24-5,291.20

Finding the Fourth Proportional to 20,082.45, 30,125.24 and 5,291.20

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Solution

The fourth proportional to 20,082.45, 30,125.24 and 5,291.20 is: 7,937.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,082.45 : 30,125.24 = 5,291.20 : x
  2. Step 2: Convert to fraction form
    20,082.45/30,125.24 = 5,291.20/x
  3. Step 3: Cross multiply
    20,082.45x = 30,125.24 × 5,291.20
  4. Step 4: Simplify right side
    20,082.45x = 159,398,492.81
  5. Step 5: Solve for x
    x = 159,398,492.81/20,082.45
  6. Step 6: Final answer
    x = 7,937.20

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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.