Home / 20,904.57-28,848.06-11,344.23

Finding the Fourth Proportional to 20,904.57, 28,848.06 and 11,344.23

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Solution

The fourth proportional to 20,904.57, 28,848.06 and 11,344.23 is: 15,654.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,904.57 : 28,848.06 = 11,344.23 : x
  2. Step 2: Convert to fraction form
    20,904.57/28,848.06 = 11,344.23/x
  3. Step 3: Cross multiply
    20,904.57x = 28,848.06 × 11,344.23
  4. Step 4: Simplify right side
    20,904.57x = 327,259,027.69
  5. Step 5: Solve for x
    x = 327,259,027.69/20,904.57
  6. Step 6: Final answer
    x = 15,654.90

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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.