Home / 20,114.78-30,182.22-9,029.36

Finding the Fourth Proportional to 20,114.78, 30,182.22 and 9,029.36

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Solution

The fourth proportional to 20,114.78, 30,182.22 and 9,029.36 is: 13,548.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,114.78 : 30,182.22 = 9,029.36 : x
  2. Step 2: Convert to fraction form
    20,114.78/30,182.22 = 9,029.36/x
  3. Step 3: Cross multiply
    20,114.78x = 30,182.22 × 9,029.36
  4. Step 4: Simplify right side
    20,114.78x = 272,526,129.98
  5. Step 5: Solve for x
    x = 272,526,129.98/20,114.78
  6. Step 6: Final answer
    x = 13,548.55

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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.