Home / 28,282.03-39,028.13-15,707.59

Finding the Fourth Proportional to 28,282.03, 39,028.13 and 15,707.59

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Solution

The fourth proportional to 28,282.03, 39,028.13 and 15,707.59 is: 21,675.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,282.03 : 39,028.13 = 15,707.59 : x
  2. Step 2: Convert to fraction form
    28,282.03/39,028.13 = 15,707.59/x
  3. Step 3: Cross multiply
    28,282.03x = 39,028.13 × 15,707.59
  4. Step 4: Simplify right side
    28,282.03x = 613,037,747.30
  5. Step 5: Solve for x
    x = 613,037,747.30/28,282.03
  6. Step 6: Final answer
    x = 21,675.88

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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.