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Finding the Fourth Proportional to 43,501.59, 65,262.11 and 13,921.20

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Solution

The fourth proportional to 43,501.59, 65,262.11 and 13,921.20 is: 20,884.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,501.59 : 65,262.11 = 13,921.20 : x
  2. Step 2: Convert to fraction form
    43,501.59/65,262.11 = 13,921.20/x
  3. Step 3: Cross multiply
    43,501.59x = 65,262.11 × 13,921.20
  4. Step 4: Simplify right side
    43,501.59x = 908,526,885.73
  5. Step 5: Solve for x
    x = 908,526,885.73/43,501.59
  6. Step 6: Final answer
    x = 20,884.91

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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.