Home / 40,222.56-60,342.34-12,144.72

Finding the Fourth Proportional to 40,222.56, 60,342.34 and 12,144.72

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Solution

The fourth proportional to 40,222.56, 60,342.34 and 12,144.72 is: 18,219.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,222.56 : 60,342.34 = 12,144.72 : x
  2. Step 2: Convert to fraction form
    40,222.56/60,342.34 = 12,144.72/x
  3. Step 3: Cross multiply
    40,222.56x = 60,342.34 × 12,144.72
  4. Step 4: Simplify right side
    40,222.56x = 732,840,823.44
  5. Step 5: Solve for x
    x = 732,840,823.44/40,222.56
  6. Step 6: Final answer
    x = 18,219.65

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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.