Home / 20,177.78-30,260.16-7,353.12

Finding the Fourth Proportional to 20,177.78, 30,260.16 and 7,353.12

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Solution

The fourth proportional to 20,177.78, 30,260.16 and 7,353.12 is: 11,027.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,177.78 : 30,260.16 = 7,353.12 : x
  2. Step 2: Convert to fraction form
    20,177.78/30,260.16 = 7,353.12/x
  3. Step 3: Cross multiply
    20,177.78x = 30,260.16 × 7,353.12
  4. Step 4: Simplify right side
    20,177.78x = 222,506,587.70
  5. Step 5: Solve for x
    x = 222,506,587.70/20,177.78
  6. Step 6: Final answer
    x = 11,027.31

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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.