Home / 20,004.88-30,011.04-8,319.04

Finding the Fourth Proportional to 20,004.88, 30,011.04 and 8,319.04

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Solution

The fourth proportional to 20,004.88, 30,011.04 and 8,319.04 is: 12,480.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,004.88 : 30,011.04 = 8,319.04 : x
  2. Step 2: Convert to fraction form
    20,004.88/30,011.04 = 8,319.04/x
  3. Step 3: Cross multiply
    20,004.88x = 30,011.04 × 8,319.04
  4. Step 4: Simplify right side
    20,004.88x = 249,663,042.20
  5. Step 5: Solve for x
    x = 249,663,042.20/20,004.88
  6. Step 6: Final answer
    x = 12,480.11

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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.