Home / 28,232.50-38,961.25-15,486.85

Finding the Fourth Proportional to 28,232.50, 38,961.25 and 15,486.85

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Solution

The fourth proportional to 28,232.50, 38,961.25 and 15,486.85 is: 21,372.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,232.50 : 38,961.25 = 15,486.85 : x
  2. Step 2: Convert to fraction form
    28,232.50/38,961.25 = 15,486.85/x
  3. Step 3: Cross multiply
    28,232.50x = 38,961.25 × 15,486.85
  4. Step 4: Simplify right side
    28,232.50x = 603,386,912.50
  5. Step 5: Solve for x
    x = 603,386,912.50/28,232.50
  6. Step 6: Final answer
    x = 21,372.07

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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.