Home / 40,279.12-60,418.68-15,660.88

Finding the Fourth Proportional to 40,279.12, 60,418.68 and 15,660.88

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Solution

The fourth proportional to 40,279.12, 60,418.68 and 15,660.88 is: 23,491.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,279.12 : 60,418.68 = 15,660.88 : x
  2. Step 2: Convert to fraction form
    40,279.12/60,418.68 = 15,660.88/x
  3. Step 3: Cross multiply
    40,279.12x = 60,418.68 × 15,660.88
  4. Step 4: Simplify right side
    40,279.12x = 946,209,697.24
  5. Step 5: Solve for x
    x = 946,209,697.24/40,279.12
  6. Step 6: Final answer
    x = 23,491.32

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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.