Home / 20,336.06-28,060.05-11,383.70

Finding the Fourth Proportional to 20,336.06, 28,060.05 and 11,383.70

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Solution

The fourth proportional to 20,336.06, 28,060.05 and 11,383.70 is: 15,707.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,336.06 : 28,060.05 = 11,383.70 : x
  2. Step 2: Convert to fraction form
    20,336.06/28,060.05 = 11,383.70/x
  3. Step 3: Cross multiply
    20,336.06x = 28,060.05 × 11,383.70
  4. Step 4: Simplify right side
    20,336.06x = 319,427,191.19
  5. Step 5: Solve for x
    x = 319,427,191.19/20,336.06
  6. Step 6: Final answer
    x = 15,707.43

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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.