Home / 32,111.28-48,169.08-12,390

Finding the Fourth Proportional to 32,111.28, 48,169.08 and 12,390

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Solution

The fourth proportional to 32,111.28, 48,169.08 and 12,390 is: 18,585.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,111.28 : 48,169.08 = 12,390 : x
  2. Step 2: Convert to fraction form
    32,111.28/48,169.08 = 12,390/x
  3. Step 3: Cross multiply
    32,111.28x = 48,169.08 × 12,390
  4. Step 4: Simplify right side
    32,111.28x = 596,814,901.20
  5. Step 5: Solve for x
    x = 596,814,901.20/32,111.28
  6. Step 6: Final answer
    x = 18,585.83

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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.