Home / 32,919.28-45,432.06-20,181

Finding the Fourth Proportional to 32,919.28, 45,432.06 and 20,181

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Solution

The fourth proportional to 32,919.28, 45,432.06 and 20,181 is: 27,851.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,919.28 : 45,432.06 = 20,181 : x
  2. Step 2: Convert to fraction form
    32,919.28/45,432.06 = 20,181/x
  3. Step 3: Cross multiply
    32,919.28x = 45,432.06 × 20,181
  4. Step 4: Simplify right side
    32,919.28x = 916,864,402.86
  5. Step 5: Solve for x
    x = 916,864,402.86/32,919.28
  6. Step 6: Final answer
    x = 27,851.90

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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.