Home / 20,140.12-30,176.07-12,332.62

Finding the Fourth Proportional to 20,140.12, 30,176.07 and 12,332.62

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Solution

The fourth proportional to 20,140.12, 30,176.07 and 12,332.62 is: 18,478.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,140.12 : 30,176.07 = 12,332.62 : x
  2. Step 2: Convert to fraction form
    20,140.12/30,176.07 = 12,332.62/x
  3. Step 3: Cross multiply
    20,140.12x = 30,176.07 × 12,332.62
  4. Step 4: Simplify right side
    20,140.12x = 372,150,004.40
  5. Step 5: Solve for x
    x = 372,150,004.40/20,140.12
  6. Step 6: Final answer
    x = 18,478.04

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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.