Home / 28,476.98-42,724.61-13,686.97

Finding the Fourth Proportional to 28,476.98, 42,724.61 and 13,686.97

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Solution

The fourth proportional to 28,476.98, 42,724.61 and 13,686.97 is: 20,534.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,476.98 : 42,724.61 = 13,686.97 : x
  2. Step 2: Convert to fraction form
    28,476.98/42,724.61 = 13,686.97/x
  3. Step 3: Cross multiply
    28,476.98x = 42,724.61 × 13,686.97
  4. Step 4: Simplify right side
    28,476.98x = 584,770,173.27
  5. Step 5: Solve for x
    x = 584,770,173.27/28,476.98
  6. Step 6: Final answer
    x = 20,534.84

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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.