Home / 40,286.89-60,421.20-15,318.06

Finding the Fourth Proportional to 40,286.89, 60,421.20 and 15,318.06

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Solution

The fourth proportional to 40,286.89, 60,421.20 and 15,318.06 is: 22,973.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,286.89 : 60,421.20 = 15,318.06 : x
  2. Step 2: Convert to fraction form
    40,286.89/60,421.20 = 15,318.06/x
  3. Step 3: Cross multiply
    40,286.89x = 60,421.20 × 15,318.06
  4. Step 4: Simplify right side
    40,286.89x = 925,535,566.87
  5. Step 5: Solve for x
    x = 925,535,566.87/40,286.89
  6. Step 6: Final answer
    x = 22,973.62

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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.