Home / 29,040.40-43,565.20-12,400.48

Finding the Fourth Proportional to 29,040.40, 43,565.20 and 12,400.48

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Solution

The fourth proportional to 29,040.40, 43,565.20 and 12,400.48 is: 18,602.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,040.40 : 43,565.20 = 12,400.48 : x
  2. Step 2: Convert to fraction form
    29,040.40/43,565.20 = 12,400.48/x
  3. Step 3: Cross multiply
    29,040.40x = 43,565.20 × 12,400.48
  4. Step 4: Simplify right side
    29,040.40x = 540,229,391.30
  5. Step 5: Solve for x
    x = 540,229,391.30/29,040.40
  6. Step 6: Final answer
    x = 18,602.68

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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.