Home / 43,421.92-65,125.92-12,259.36

Finding the Fourth Proportional to 43,421.92, 65,125.92 and 12,259.36

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Solution

The fourth proportional to 43,421.92, 65,125.92 and 12,259.36 is: 18,387.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,421.92 : 65,125.92 = 12,259.36 : x
  2. Step 2: Convert to fraction form
    43,421.92/65,125.92 = 12,259.36/x
  3. Step 3: Cross multiply
    43,421.92x = 65,125.92 × 12,259.36
  4. Step 4: Simplify right side
    43,421.92x = 798,402,098.61
  5. Step 5: Solve for x
    x = 798,402,098.61/43,421.92
  6. Step 6: Final answer
    x = 18,387.07

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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.