Home / 40,020.66-60,034.40-11,938.90

Finding the Fourth Proportional to 40,020.66, 60,034.40 and 11,938.90

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Solution

The fourth proportional to 40,020.66, 60,034.40 and 11,938.90 is: 17,909.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,020.66 : 60,034.40 = 11,938.90 : x
  2. Step 2: Convert to fraction form
    40,020.66/60,034.40 = 11,938.90/x
  3. Step 3: Cross multiply
    40,020.66x = 60,034.40 × 11,938.90
  4. Step 4: Simplify right side
    40,020.66x = 716,744,698.16
  5. Step 5: Solve for x
    x = 716,744,698.16/40,020.66
  6. Step 6: Final answer
    x = 17,909.37

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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.