Home / 40,474.56-60,720.64-12,394.72

Finding the Fourth Proportional to 40,474.56, 60,720.64 and 12,394.72

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Solution

The fourth proportional to 40,474.56, 60,720.64 and 12,394.72 is: 18,594.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,474.56 : 60,720.64 = 12,394.72 : x
  2. Step 2: Convert to fraction form
    40,474.56/60,720.64 = 12,394.72/x
  3. Step 3: Cross multiply
    40,474.56x = 60,720.64 × 12,394.72
  4. Step 4: Simplify right side
    40,474.56x = 752,615,331.02
  5. Step 5: Solve for x
    x = 752,615,331.02/40,474.56
  6. Step 6: Final answer
    x = 18,594.77

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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.