Home / 20,293.61-28,007.84-11,342.97

Finding the Fourth Proportional to 20,293.61, 28,007.84 and 11,342.97

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Solution

The fourth proportional to 20,293.61, 28,007.84 and 11,342.97 is: 15,654.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,293.61 : 28,007.84 = 11,342.97 : x
  2. Step 2: Convert to fraction form
    20,293.61/28,007.84 = 11,342.97/x
  3. Step 3: Cross multiply
    20,293.61x = 28,007.84 × 11,342.97
  4. Step 4: Simplify right side
    20,293.61x = 317,692,117.24
  5. Step 5: Solve for x
    x = 317,692,117.24/20,293.61
  6. Step 6: Final answer
    x = 15,654.79

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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.