Home / 20,610.03-28,442.19-11,178.59

Finding the Fourth Proportional to 20,610.03, 28,442.19 and 11,178.59

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Solution

The fourth proportional to 20,610.03, 28,442.19 and 11,178.59 is: 15,426.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,610.03 : 28,442.19 = 11,178.59 : x
  2. Step 2: Convert to fraction form
    20,610.03/28,442.19 = 11,178.59/x
  3. Step 3: Cross multiply
    20,610.03x = 28,442.19 × 11,178.59
  4. Step 4: Simplify right side
    20,610.03x = 317,943,438.50
  5. Step 5: Solve for x
    x = 317,943,438.50/20,610.03
  6. Step 6: Final answer
    x = 15,426.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.