Home / 20,179.10-30,261.45-7,031.90

Finding the Fourth Proportional to 20,179.10, 30,261.45 and 7,031.90

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Solution

The fourth proportional to 20,179.10, 30,261.45 and 7,031.90 is: 10,545.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,179.10 : 30,261.45 = 7,031.90 : x
  2. Step 2: Convert to fraction form
    20,179.10/30,261.45 = 7,031.90/x
  3. Step 3: Cross multiply
    20,179.10x = 30,261.45 × 7,031.90
  4. Step 4: Simplify right side
    20,179.10x = 212,795,490.26
  5. Step 5: Solve for x
    x = 212,795,490.26/20,179.10
  6. Step 6: Final answer
    x = 10,545.34

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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.