Home / 28,096.20-38,772.12-15,349.80

Finding the Fourth Proportional to 28,096.20, 38,772.12 and 15,349.80

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Solution

The fourth proportional to 28,096.20, 38,772.12 and 15,349.80 is: 21,182.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,096.20 : 38,772.12 = 15,349.80 : x
  2. Step 2: Convert to fraction form
    28,096.20/38,772.12 = 15,349.80/x
  3. Step 3: Cross multiply
    28,096.20x = 38,772.12 × 15,349.80
  4. Step 4: Simplify right side
    28,096.20x = 595,144,287.58
  5. Step 5: Solve for x
    x = 595,144,287.58/28,096.20
  6. Step 6: Final answer
    x = 21,182.38

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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.