Home / 28,326.80-42,490.92-15,839.84

Finding the Fourth Proportional to 28,326.80, 42,490.92 and 15,839.84

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Solution

The fourth proportional to 28,326.80, 42,490.92 and 15,839.84 is: 23,760.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,326.80 : 42,490.92 = 15,839.84 : x
  2. Step 2: Convert to fraction form
    28,326.80/42,490.92 = 15,839.84/x
  3. Step 3: Cross multiply
    28,326.80x = 42,490.92 × 15,839.84
  4. Step 4: Simplify right side
    28,326.80x = 673,049,374.25
  5. Step 5: Solve for x
    x = 673,049,374.25/28,326.80
  6. Step 6: Final answer
    x = 23,760.16

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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.