Home / 43,239.29-64,865.63-18,279.44

Finding the Fourth Proportional to 43,239.29, 64,865.63 and 18,279.44

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Solution

The fourth proportional to 43,239.29, 64,865.63 and 18,279.44 is: 27,421.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,239.29 : 64,865.63 = 18,279.44 : x
  2. Step 2: Convert to fraction form
    43,239.29/64,865.63 = 18,279.44/x
  3. Step 3: Cross multiply
    43,239.29x = 64,865.63 × 18,279.44
  4. Step 4: Simplify right side
    43,239.29x = 1,185,707,113.02
  5. Step 5: Solve for x
    x = 1,185,707,113.02/43,239.29
  6. Step 6: Final answer
    x = 27,421.98

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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.