Home / 43,359.16-65,031.18-12,187

Finding the Fourth Proportional to 43,359.16, 65,031.18 and 12,187

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Solution

The fourth proportional to 43,359.16, 65,031.18 and 12,187 is: 18,278.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,359.16 : 65,031.18 = 12,187 : x
  2. Step 2: Convert to fraction form
    43,359.16/65,031.18 = 12,187/x
  3. Step 3: Cross multiply
    43,359.16x = 65,031.18 × 12,187
  4. Step 4: Simplify right side
    43,359.16x = 792,534,990.66
  5. Step 5: Solve for x
    x = 792,534,990.66/43,359.16
  6. Step 6: Final answer
    x = 18,278.38

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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.