Home / 20,325.16-28,051.14-13,246.12

Finding the Fourth Proportional to 20,325.16, 28,051.14 and 13,246.12

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Solution

The fourth proportional to 20,325.16, 28,051.14 and 13,246.12 is: 18,281.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,325.16 : 28,051.14 = 13,246.12 : x
  2. Step 2: Convert to fraction form
    20,325.16/28,051.14 = 13,246.12/x
  3. Step 3: Cross multiply
    20,325.16x = 28,051.14 × 13,246.12
  4. Step 4: Simplify right side
    20,325.16x = 371,568,766.58
  5. Step 5: Solve for x
    x = 371,568,766.58/20,325.16
  6. Step 6: Final answer
    x = 18,281.22

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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.