Home / 28,979.82-39,987.59-16,232.04

Finding the Fourth Proportional to 28,979.82, 39,987.59 and 16,232.04

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Solution

The fourth proportional to 28,979.82, 39,987.59 and 16,232.04 is: 22,397.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,979.82 : 39,987.59 = 16,232.04 : x
  2. Step 2: Convert to fraction form
    28,979.82/39,987.59 = 16,232.04/x
  3. Step 3: Cross multiply
    28,979.82x = 39,987.59 × 16,232.04
  4. Step 4: Simplify right side
    28,979.82x = 649,080,079.22
  5. Step 5: Solve for x
    x = 649,080,079.22/28,979.82
  6. Step 6: Final answer
    x = 22,397.66

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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.