Home / 20,454.67-28,224.52-11,501.83

Finding the Fourth Proportional to 20,454.67, 28,224.52 and 11,501.83

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Solution

The fourth proportional to 20,454.67, 28,224.52 and 11,501.83 is: 15,870.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,454.67 : 28,224.52 = 11,501.83 : x
  2. Step 2: Convert to fraction form
    20,454.67/28,224.52 = 11,501.83/x
  3. Step 3: Cross multiply
    20,454.67x = 28,224.52 × 11,501.83
  4. Step 4: Simplify right side
    20,454.67x = 324,633,630.87
  5. Step 5: Solve for x
    x = 324,633,630.87/20,454.67
  6. Step 6: Final answer
    x = 15,870.88

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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.