Home / 40,248.85-60,378.89-12,165.72

Finding the Fourth Proportional to 40,248.85, 60,378.89 and 12,165.72

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Solution

The fourth proportional to 40,248.85, 60,378.89 and 12,165.72 is: 18,250.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,248.85 : 60,378.89 = 12,165.72 : x
  2. Step 2: Convert to fraction form
    40,248.85/60,378.89 = 12,165.72/x
  3. Step 3: Cross multiply
    40,248.85x = 60,378.89 × 12,165.72
  4. Step 4: Simplify right side
    40,248.85x = 734,552,654.87
  5. Step 5: Solve for x
    x = 734,552,654.87/40,248.85
  6. Step 6: Final answer
    x = 18,250.28

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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.