Home / 20,775.52-28,669.98-11,344.24

Finding the Fourth Proportional to 20,775.52, 28,669.98 and 11,344.24

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Solution

The fourth proportional to 20,775.52, 28,669.98 and 11,344.24 is: 15,654.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,775.52 : 28,669.98 = 11,344.24 : x
  2. Step 2: Convert to fraction form
    20,775.52/28,669.98 = 11,344.24/x
  3. Step 3: Cross multiply
    20,775.52x = 28,669.98 × 11,344.24
  4. Step 4: Simplify right side
    20,775.52x = 325,239,133.92
  5. Step 5: Solve for x
    x = 325,239,133.92/20,775.52
  6. Step 6: Final answer
    x = 15,654.92

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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.