Home / 20,876.74-31,312.08-6,837.33

Finding the Fourth Proportional to 20,876.74, 31,312.08 and 6,837.33

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Solution

The fourth proportional to 20,876.74, 31,312.08 and 6,837.33 is: 10,255.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,876.74 : 31,312.08 = 6,837.33 : x
  2. Step 2: Convert to fraction form
    20,876.74/31,312.08 = 6,837.33/x
  3. Step 3: Cross multiply
    20,876.74x = 31,312.08 × 6,837.33
  4. Step 4: Simplify right side
    20,876.74x = 214,091,023.95
  5. Step 5: Solve for x
    x = 214,091,023.95/20,876.74
  6. Step 6: Final answer
    x = 10,255.00

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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.