Home / 13,730.38-20,595.60-3,342.13

Finding the Fourth Proportional to 13,730.38, 20,595.60 and 3,342.13

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Solution

The fourth proportional to 13,730.38, 20,595.60 and 3,342.13 is: 5,013.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,730.38 : 20,595.60 = 3,342.13 : x
  2. Step 2: Convert to fraction form
    13,730.38/20,595.60 = 3,342.13/x
  3. Step 3: Cross multiply
    13,730.38x = 20,595.60 × 3,342.13
  4. Step 4: Simplify right side
    13,730.38x = 68,833,121.14
  5. Step 5: Solve for x
    x = 68,833,121.14/13,730.38
  6. Step 6: Final answer
    x = 5,013.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.