Home / 28,248.34-38,982.36-15,327.42

Finding the Fourth Proportional to 28,248.34, 38,982.36 and 15,327.42

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Solution

The fourth proportional to 28,248.34, 38,982.36 and 15,327.42 is: 21,151.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,248.34 : 38,982.36 = 15,327.42 : x
  2. Step 2: Convert to fraction form
    28,248.34/38,982.36 = 15,327.42/x
  3. Step 3: Cross multiply
    28,248.34x = 38,982.36 × 15,327.42
  4. Step 4: Simplify right side
    28,248.34x = 597,499,004.31
  5. Step 5: Solve for x
    x = 597,499,004.31/28,248.34
  6. Step 6: Final answer
    x = 21,151.65

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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.