Home / 28,013.73-38,605.74-20,042.13

Finding the Fourth Proportional to 28,013.73, 38,605.74 and 20,042.13

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Solution

The fourth proportional to 28,013.73, 38,605.74 and 20,042.13 is: 27,620.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,013.73 : 38,605.74 = 20,042.13 : x
  2. Step 2: Convert to fraction form
    28,013.73/38,605.74 = 20,042.13/x
  3. Step 3: Cross multiply
    28,013.73x = 38,605.74 × 20,042.13
  4. Step 4: Simplify right side
    28,013.73x = 773,741,259.83
  5. Step 5: Solve for x
    x = 773,741,259.83/28,013.73
  6. Step 6: Final answer
    x = 27,620.07

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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.