Home / 40,480.76-60,725.18-12,400.49

Finding the Fourth Proportional to 40,480.76, 60,725.18 and 12,400.49

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Solution

The fourth proportional to 40,480.76, 60,725.18 and 12,400.49 is: 18,601.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,480.76 : 60,725.18 = 12,400.49 : x
  2. Step 2: Convert to fraction form
    40,480.76/60,725.18 = 12,400.49/x
  3. Step 3: Cross multiply
    40,480.76x = 60,725.18 × 12,400.49
  4. Step 4: Simplify right side
    40,480.76x = 753,021,714.71
  5. Step 5: Solve for x
    x = 753,021,714.71/40,480.76
  6. Step 6: Final answer
    x = 18,601.97

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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.