Home / 40,220.83-55,529.18-31,251.39

Finding the Fourth Proportional to 40,220.83, 55,529.18 and 31,251.39

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Solution

The fourth proportional to 40,220.83, 55,529.18 and 31,251.39 is: 43,145.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,220.83 : 55,529.18 = 31,251.39 : x
  2. Step 2: Convert to fraction form
    40,220.83/55,529.18 = 31,251.39/x
  3. Step 3: Cross multiply
    40,220.83x = 55,529.18 × 31,251.39
  4. Step 4: Simplify right side
    40,220.83x = 1,735,364,413.63
  5. Step 5: Solve for x
    x = 1,735,364,413.63/40,220.83
  6. Step 6: Final answer
    x = 43,145.91

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1.5x scale

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.