Home / 31,350.33-43,251.51-20,020.35

Finding the Fourth Proportional to 31,350.33, 43,251.51 and 20,020.35

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Solution

The fourth proportional to 31,350.33, 43,251.51 and 20,020.35 is: 27,620.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,350.33 : 43,251.51 = 20,020.35 : x
  2. Step 2: Convert to fraction form
    31,350.33/43,251.51 = 20,020.35/x
  3. Step 3: Cross multiply
    31,350.33x = 43,251.51 × 20,020.35
  4. Step 4: Simplify right side
    31,350.33x = 865,910,368.23
  5. Step 5: Solve for x
    x = 865,910,368.23/31,350.33
  6. Step 6: Final answer
    x = 27,620.45

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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.