Home / 20,179.01-30,267.90-5,389.11

Finding the Fourth Proportional to 20,179.01, 30,267.90 and 5,389.11

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Solution

The fourth proportional to 20,179.01, 30,267.90 and 5,389.11 is: 8,083.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,179.01 : 30,267.90 = 5,389.11 : x
  2. Step 2: Convert to fraction form
    20,179.01/30,267.90 = 5,389.11/x
  3. Step 3: Cross multiply
    20,179.01x = 30,267.90 × 5,389.11
  4. Step 4: Simplify right side
    20,179.01x = 163,117,042.57
  5. Step 5: Solve for x
    x = 163,117,042.57/20,179.01
  6. Step 6: Final answer
    x = 8,083.50

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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.