Home / 67,186.48-100,794.28-20,438.14

Finding the Fourth Proportional to 67,186.48, 100,794.28 and 20,438.14

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Solution

The fourth proportional to 67,186.48, 100,794.28 and 20,438.14 is: 30,661.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,186.48 : 100,794.28 = 20,438.14 : x
  2. Step 2: Convert to fraction form
    67,186.48/100,794.28 = 20,438.14/x
  3. Step 3: Cross multiply
    67,186.48x = 100,794.28 × 20,438.14
  4. Step 4: Simplify right side
    67,186.48x = 2,060,047,605.84
  5. Step 5: Solve for x
    x = 2,060,047,605.84/67,186.48
  6. Step 6: Final answer
    x = 30,661.64

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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.