Home / 20,245.95-30,360.56-7,095.20

Finding the Fourth Proportional to 20,245.95, 30,360.56 and 7,095.20

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Solution

The fourth proportional to 20,245.95, 30,360.56 and 7,095.20 is: 10,639.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,245.95 : 30,360.56 = 7,095.20 : x
  2. Step 2: Convert to fraction form
    20,245.95/30,360.56 = 7,095.20/x
  3. Step 3: Cross multiply
    20,245.95x = 30,360.56 × 7,095.20
  4. Step 4: Simplify right side
    20,245.95x = 215,414,058.03
  5. Step 5: Solve for x
    x = 215,414,058.03/20,245.95
  6. Step 6: Final answer
    x = 10,639.86

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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.