Home / 41,987.46-62,991.54-12,405.18

Finding the Fourth Proportional to 41,987.46, 62,991.54 and 12,405.18

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Solution

The fourth proportional to 41,987.46, 62,991.54 and 12,405.18 is: 18,610.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,987.46 : 62,991.54 = 12,405.18 : x
  2. Step 2: Convert to fraction form
    41,987.46/62,991.54 = 12,405.18/x
  3. Step 3: Cross multiply
    41,987.46x = 62,991.54 × 12,405.18
  4. Step 4: Simplify right side
    41,987.46x = 781,421,392.18
  5. Step 5: Solve for x
    x = 781,421,392.18/41,987.46
  6. Step 6: Final answer
    x = 18,610.83

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1.5x scale

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.