Home / 40,238.55-60,354.32-15,278.78

Finding the Fourth Proportional to 40,238.55, 60,354.32 and 15,278.78

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Solution

The fourth proportional to 40,238.55, 60,354.32 and 15,278.78 is: 22,916.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,238.55 : 60,354.32 = 15,278.78 : x
  2. Step 2: Convert to fraction form
    40,238.55/60,354.32 = 15,278.78/x
  3. Step 3: Cross multiply
    40,238.55x = 60,354.32 × 15,278.78
  4. Step 4: Simplify right side
    40,238.55x = 922,140,451.82
  5. Step 5: Solve for x
    x = 922,140,451.82/40,238.55
  6. Step 6: Final answer
    x = 22,916.84

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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.