Home / 20,512.16-28,316.23-12,013.10

Finding the Fourth Proportional to 20,512.16, 28,316.23 and 12,013.10

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Solution

The fourth proportional to 20,512.16, 28,316.23 and 12,013.10 is: 16,583.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,512.16 : 28,316.23 = 12,013.10 : x
  2. Step 2: Convert to fraction form
    20,512.16/28,316.23 = 12,013.10/x
  3. Step 3: Cross multiply
    20,512.16x = 28,316.23 × 12,013.10
  4. Step 4: Simplify right side
    20,512.16x = 340,165,659.71
  5. Step 5: Solve for x
    x = 340,165,659.71/20,512.16
  6. Step 6: Final answer
    x = 16,583.61

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.