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Finding the Fourth Proportional to 43,497.71, 65,235.92 and 13,909.42

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Solution

The fourth proportional to 43,497.71, 65,235.92 and 13,909.42 is: 20,860.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,497.71 : 65,235.92 = 13,909.42 : x
  2. Step 2: Convert to fraction form
    43,497.71/65,235.92 = 13,909.42/x
  3. Step 3: Cross multiply
    43,497.71x = 65,235.92 × 13,909.42
  4. Step 4: Simplify right side
    43,497.71x = 907,393,484.19
  5. Step 5: Solve for x
    x = 907,393,484.19/43,497.71
  6. Step 6: Final answer
    x = 20,860.72

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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.