Home / 20,837.27-28,750.60-12,335.11

Finding the Fourth Proportional to 20,837.27, 28,750.60 and 12,335.11

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Solution

The fourth proportional to 20,837.27, 28,750.60 and 12,335.11 is: 17,019.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,837.27 : 28,750.60 = 12,335.11 : x
  2. Step 2: Convert to fraction form
    20,837.27/28,750.60 = 12,335.11/x
  3. Step 3: Cross multiply
    20,837.27x = 28,750.60 × 12,335.11
  4. Step 4: Simplify right side
    20,837.27x = 354,641,813.57
  5. Step 5: Solve for x
    x = 354,641,813.57/20,837.27
  6. Step 6: Final answer
    x = 17,019.59

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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.