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Finding the Fourth Proportional to 43,487.53, 65,239.49 and 13,897.42

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Solution

The fourth proportional to 43,487.53, 65,239.49 and 13,897.42 is: 20,848.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,487.53 : 65,239.49 = 13,897.42 : x
  2. Step 2: Convert to fraction form
    43,487.53/65,239.49 = 13,897.42/x
  3. Step 3: Cross multiply
    43,487.53x = 65,239.49 × 13,897.42
  4. Step 4: Simplify right side
    43,487.53x = 906,660,464.76
  5. Step 5: Solve for x
    x = 906,660,464.76/43,487.53
  6. Step 6: Final answer
    x = 20,848.75

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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.