Home / 40,278.87-60,438.76-18,087.71

Finding the Fourth Proportional to 40,278.87, 60,438.76 and 18,087.71

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Solution

The fourth proportional to 40,278.87, 60,438.76 and 18,087.71 is: 27,140.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,278.87 : 60,438.76 = 18,087.71 : x
  2. Step 2: Convert to fraction form
    40,278.87/60,438.76 = 18,087.71/x
  3. Step 3: Cross multiply
    40,278.87x = 60,438.76 × 18,087.71
  4. Step 4: Simplify right side
    40,278.87x = 1,093,198,416.23
  5. Step 5: Solve for x
    x = 1,093,198,416.23/40,278.87
  6. Step 6: Final answer
    x = 27,140.74

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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.