Home / 20,342.38-28,071.07-13,626.92

Finding the Fourth Proportional to 20,342.38, 28,071.07 and 13,626.92

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Solution

The fourth proportional to 20,342.38, 28,071.07 and 13,626.92 is: 18,804.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,342.38 : 28,071.07 = 13,626.92 : x
  2. Step 2: Convert to fraction form
    20,342.38/28,071.07 = 13,626.92/x
  3. Step 3: Cross multiply
    20,342.38x = 28,071.07 × 13,626.92
  4. Step 4: Simplify right side
    20,342.38x = 382,522,225.20
  5. Step 5: Solve for x
    x = 382,522,225.20/20,342.38
  6. Step 6: Final answer
    x = 18,804.20

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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.