Home / 20,335.07-28,062.11-12,371.67

Finding the Fourth Proportional to 20,335.07, 28,062.11 and 12,371.67

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Solution

The fourth proportional to 20,335.07, 28,062.11 and 12,371.67 is: 17,072.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,335.07 : 28,062.11 = 12,371.67 : x
  2. Step 2: Convert to fraction form
    20,335.07/28,062.11 = 12,371.67/x
  3. Step 3: Cross multiply
    20,335.07x = 28,062.11 × 12,371.67
  4. Step 4: Simplify right side
    20,335.07x = 347,175,195.35
  5. Step 5: Solve for x
    x = 347,175,195.35/20,335.07
  6. Step 6: Final answer
    x = 17,072.73

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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.