Home / 28,025.35-38,674.45-15,278.65

Finding the Fourth Proportional to 28,025.35, 38,674.45 and 15,278.65

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Solution

The fourth proportional to 28,025.35, 38,674.45 and 15,278.65 is: 21,084.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,025.35 : 38,674.45 = 15,278.65 : x
  2. Step 2: Convert to fraction form
    28,025.35/38,674.45 = 15,278.65/x
  3. Step 3: Cross multiply
    28,025.35x = 38,674.45 × 15,278.65
  4. Step 4: Simplify right side
    28,025.35x = 590,893,385.49
  5. Step 5: Solve for x
    x = 590,893,385.49/28,025.35
  6. Step 6: Final answer
    x = 21,084.25

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Similar ratio
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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.