Home / 40,219.74-60,335.28-13,557.78

Finding the Fourth Proportional to 40,219.74, 60,335.28 and 13,557.78

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Solution

The fourth proportional to 40,219.74, 60,335.28 and 13,557.78 is: 20,338.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,219.74 : 60,335.28 = 13,557.78 : x
  2. Step 2: Convert to fraction form
    40,219.74/60,335.28 = 13,557.78/x
  3. Step 3: Cross multiply
    40,219.74x = 60,335.28 × 13,557.78
  4. Step 4: Simplify right side
    40,219.74x = 818,012,452.48
  5. Step 5: Solve for x
    x = 818,012,452.48/40,219.74
  6. Step 6: Final answer
    x = 20,338.58

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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.