Home / 28,010.66-38,654.22-15,263.96

Finding the Fourth Proportional to 28,010.66, 38,654.22 and 15,263.96

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Solution

The fourth proportional to 28,010.66, 38,654.22 and 15,263.96 is: 21,063.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,010.66 : 38,654.22 = 15,263.96 : x
  2. Step 2: Convert to fraction form
    28,010.66/38,654.22 = 15,263.96/x
  3. Step 3: Cross multiply
    28,010.66x = 38,654.22 × 15,263.96
  4. Step 4: Simplify right side
    28,010.66x = 590,016,198.32
  5. Step 5: Solve for x
    x = 590,016,198.32/28,010.66
  6. Step 6: Final answer
    x = 21,063.99

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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.