Home / 40,139.15-60,211.61-13,843.51

Finding the Fourth Proportional to 40,139.15, 60,211.61 and 13,843.51

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Solution

The fourth proportional to 40,139.15, 60,211.61 and 13,843.51 is: 20,766.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,139.15 : 60,211.61 = 13,843.51 : x
  2. Step 2: Convert to fraction form
    40,139.15/60,211.61 = 13,843.51/x
  3. Step 3: Cross multiply
    40,139.15x = 60,211.61 × 13,843.51
  4. Step 4: Simplify right side
    40,139.15x = 833,540,025.15
  5. Step 5: Solve for x
    x = 833,540,025.15/40,139.15
  6. Step 6: Final answer
    x = 20,766.26

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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.