Home / 28,839.24-39,799.62-21,753.36

Finding the Fourth Proportional to 28,839.24, 39,799.62 and 21,753.36

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Solution

The fourth proportional to 28,839.24, 39,799.62 and 21,753.36 is: 30,020.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,839.24 : 39,799.62 = 21,753.36 : x
  2. Step 2: Convert to fraction form
    28,839.24/39,799.62 = 21,753.36/x
  3. Step 3: Cross multiply
    28,839.24x = 39,799.62 × 21,753.36
  4. Step 4: Simplify right side
    28,839.24x = 865,775,461.72
  5. Step 5: Solve for x
    x = 865,775,461.72/28,839.24
  6. Step 6: Final answer
    x = 30,020.74

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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.