Home / 32,989.08-45,502.38-20,391.96

Finding the Fourth Proportional to 32,989.08, 45,502.38 and 20,391.96

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Solution

The fourth proportional to 32,989.08, 45,502.38 and 20,391.96 is: 28,126.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,989.08 : 45,502.38 = 20,391.96 : x
  2. Step 2: Convert to fraction form
    32,989.08/45,502.38 = 20,391.96/x
  3. Step 3: Cross multiply
    32,989.08x = 45,502.38 × 20,391.96
  4. Step 4: Simplify right side
    32,989.08x = 927,882,712.86
  5. Step 5: Solve for x
    x = 927,882,712.86/32,989.08
  6. Step 6: Final answer
    x = 28,126.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.