Home / 28,037.55-38,691.33-15,290.84

Finding the Fourth Proportional to 28,037.55, 38,691.33 and 15,290.84

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Solution

The fourth proportional to 28,037.55, 38,691.33 and 15,290.84 is: 21,101.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,037.55 : 38,691.33 = 15,290.84 : x
  2. Step 2: Convert to fraction form
    28,037.55/38,691.33 = 15,290.84/x
  3. Step 3: Cross multiply
    28,037.55x = 38,691.33 × 15,290.84
  4. Step 4: Simplify right side
    28,037.55x = 591,622,742.96
  5. Step 5: Solve for x
    x = 591,622,742.96/28,037.55
  6. Step 6: Final answer
    x = 21,101.09

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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.