Home / 67,186.47-100,794.28-20,438.13

Finding the Fourth Proportional to 67,186.47, 100,794.28 and 20,438.13

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Solution

The fourth proportional to 67,186.47, 100,794.28 and 20,438.13 is: 30,661.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,186.47 : 100,794.28 = 20,438.13 : x
  2. Step 2: Convert to fraction form
    67,186.47/100,794.28 = 20,438.13/x
  3. Step 3: Cross multiply
    67,186.47x = 100,794.28 × 20,438.13
  4. Step 4: Simplify right side
    67,186.47x = 2,060,046,597.90
  5. Step 5: Solve for x
    x = 2,060,046,597.90/67,186.47
  6. Step 6: Final answer
    x = 30,661.63

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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.