Home / 28,200.96-38,913.12-17,456.64

Finding the Fourth Proportional to 28,200.96, 38,913.12 and 17,456.64

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Solution

The fourth proportional to 28,200.96, 38,913.12 and 17,456.64 is: 24,087.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,200.96 : 38,913.12 = 17,456.64 : x
  2. Step 2: Convert to fraction form
    28,200.96/38,913.12 = 17,456.64/x
  3. Step 3: Cross multiply
    28,200.96x = 38,913.12 × 17,456.64
  4. Step 4: Simplify right side
    28,200.96x = 679,292,327.12
  5. Step 5: Solve for x
    x = 679,292,327.12/28,200.96
  6. Step 6: Final answer
    x = 24,087.56

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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.