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Finding the Fourth Proportional to 41,980.40, 62,962.18 and 20,624.20

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Solution

The fourth proportional to 41,980.40, 62,962.18 and 20,624.20 is: 30,932.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,980.40 : 62,962.18 = 20,624.20 : x
  2. Step 2: Convert to fraction form
    41,980.40/62,962.18 = 20,624.20/x
  3. Step 3: Cross multiply
    41,980.40x = 62,962.18 × 20,624.20
  4. Step 4: Simplify right side
    41,980.40x = 1,298,544,592.76
  5. Step 5: Solve for x
    x = 1,298,544,592.76/41,980.40
  6. Step 6: Final answer
    x = 30,932.16

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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.