Home / 28,549.13-39,397.79-15,976.31

Finding the Fourth Proportional to 28,549.13, 39,397.79 and 15,976.31

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Solution

The fourth proportional to 28,549.13, 39,397.79 and 15,976.31 is: 22,047.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,549.13 : 39,397.79 = 15,976.31 : x
  2. Step 2: Convert to fraction form
    28,549.13/39,397.79 = 15,976.31/x
  3. Step 3: Cross multiply
    28,549.13x = 39,397.79 × 15,976.31
  4. Step 4: Simplify right side
    28,549.13x = 629,431,149.31
  5. Step 5: Solve for x
    x = 629,431,149.31/28,549.13
  6. Step 6: Final answer
    x = 22,047.30

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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.