Home / 20,230.76-30,337.86-11,927.36

Finding the Fourth Proportional to 20,230.76, 30,337.86 and 11,927.36

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Solution

The fourth proportional to 20,230.76, 30,337.86 and 11,927.36 is: 17,886.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,230.76 : 30,337.86 = 11,927.36 : x
  2. Step 2: Convert to fraction form
    20,230.76/30,337.86 = 11,927.36/x
  3. Step 3: Cross multiply
    20,230.76x = 30,337.86 × 11,927.36
  4. Step 4: Simplify right side
    20,230.76x = 361,850,577.85
  5. Step 5: Solve for x
    x = 361,850,577.85/20,230.76
  6. Step 6: Final answer
    x = 17,886.16

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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.