Home / 28,250.38-38,986.74-15,675.13

Finding the Fourth Proportional to 28,250.38, 38,986.74 and 15,675.13

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Solution

The fourth proportional to 28,250.38, 38,986.74 and 15,675.13 is: 21,632.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,250.38 : 38,986.74 = 15,675.13 : x
  2. Step 2: Convert to fraction form
    28,250.38/38,986.74 = 15,675.13/x
  3. Step 3: Cross multiply
    28,250.38x = 38,986.74 × 15,675.13
  4. Step 4: Simplify right side
    28,250.38x = 611,121,944.47
  5. Step 5: Solve for x
    x = 611,121,944.47/28,250.38
  6. Step 6: Final answer
    x = 21,632.35

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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.