Home / 20,876.06-31,316.02-6,836.19

Finding the Fourth Proportional to 20,876.06, 31,316.02 and 6,836.19

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Solution

The fourth proportional to 20,876.06, 31,316.02 and 6,836.19 is: 10,254.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,876.06 : 31,316.02 = 6,836.19 : x
  2. Step 2: Convert to fraction form
    20,876.06/31,316.02 = 6,836.19/x
  3. Step 3: Cross multiply
    20,876.06x = 31,316.02 × 6,836.19
  4. Step 4: Simplify right side
    20,876.06x = 214,082,245.67
  5. Step 5: Solve for x
    x = 214,082,245.67/20,876.06
  6. Step 6: Final answer
    x = 10,254.92

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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.