Home / 15,037.23-20,751.72-8,231.90

Finding the Fourth Proportional to 15,037.23, 20,751.72 and 8,231.90

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Solution

The fourth proportional to 15,037.23, 20,751.72 and 8,231.90 is: 11,360.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,037.23 : 20,751.72 = 8,231.90 : x
  2. Step 2: Convert to fraction form
    15,037.23/20,751.72 = 8,231.90/x
  3. Step 3: Cross multiply
    15,037.23x = 20,751.72 × 8,231.90
  4. Step 4: Simplify right side
    15,037.23x = 170,825,938.95
  5. Step 5: Solve for x
    x = 170,825,938.95/15,037.23
  6. Step 6: Final answer
    x = 11,360.20

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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.