Home / 43,871.29-65,807.45-12,279.48

Finding the Fourth Proportional to 43,871.29, 65,807.45 and 12,279.48

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Solution

The fourth proportional to 43,871.29, 65,807.45 and 12,279.48 is: 18,419.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,871.29 : 65,807.45 = 12,279.48 : x
  2. Step 2: Convert to fraction form
    43,871.29/65,807.45 = 12,279.48/x
  3. Step 3: Cross multiply
    43,871.29x = 65,807.45 × 12,279.48
  4. Step 4: Simplify right side
    43,871.29x = 808,081,266.13
  5. Step 5: Solve for x
    x = 808,081,266.13/43,871.29
  6. Step 6: Final answer
    x = 18,419.36

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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.