Home / 28,251.54-38,987.73-15,677.46

Finding the Fourth Proportional to 28,251.54, 38,987.73 and 15,677.46

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Solution

The fourth proportional to 28,251.54, 38,987.73 and 15,677.46 is: 21,635.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,251.54 : 38,987.73 = 15,677.46 : x
  2. Step 2: Convert to fraction form
    28,251.54/38,987.73 = 15,677.46/x
  3. Step 3: Cross multiply
    28,251.54x = 38,987.73 × 15,677.46
  4. Step 4: Simplify right side
    28,251.54x = 611,228,577.57
  5. Step 5: Solve for x
    x = 611,228,577.57/28,251.54
  6. Step 6: Final answer
    x = 21,635.23

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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.