Home / 28,104.23-42,177.13-13,313.18

Finding the Fourth Proportional to 28,104.23, 42,177.13 and 13,313.18

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Solution

The fourth proportional to 28,104.23, 42,177.13 and 13,313.18 is: 19,979.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,104.23 : 42,177.13 = 13,313.18 : x
  2. Step 2: Convert to fraction form
    28,104.23/42,177.13 = 13,313.18/x
  3. Step 3: Cross multiply
    28,104.23x = 42,177.13 × 13,313.18
  4. Step 4: Simplify right side
    28,104.23x = 561,511,479.40
  5. Step 5: Solve for x
    x = 561,511,479.40/28,104.23
  6. Step 6: Final answer
    x = 19,979.61

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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.