Home / 40,219.60-60,334.80-13,932.40

Finding the Fourth Proportional to 40,219.60, 60,334.80 and 13,932.40

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Solution

The fourth proportional to 40,219.60, 60,334.80 and 13,932.40 is: 20,900.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,219.60 : 60,334.80 = 13,932.40 : x
  2. Step 2: Convert to fraction form
    40,219.60/60,334.80 = 13,932.40/x
  3. Step 3: Cross multiply
    40,219.60x = 60,334.80 × 13,932.40
  4. Step 4: Simplify right side
    40,219.60x = 840,608,567.52
  5. Step 5: Solve for x
    x = 840,608,567.52/40,219.60
  6. Step 6: Final answer
    x = 20,900.47

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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.