Home / 42,982.75-64,499.19-18,020.88

Finding the Fourth Proportional to 42,982.75, 64,499.19 and 18,020.88

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Solution

The fourth proportional to 42,982.75, 64,499.19 and 18,020.88 is: 27,041.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,982.75 : 64,499.19 = 18,020.88 : x
  2. Step 2: Convert to fraction form
    42,982.75/64,499.19 = 18,020.88/x
  3. Step 3: Cross multiply
    42,982.75x = 64,499.19 × 18,020.88
  4. Step 4: Simplify right side
    42,982.75x = 1,162,332,095.51
  5. Step 5: Solve for x
    x = 1,162,332,095.51/42,982.75
  6. Step 6: Final answer
    x = 27,041.83

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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.