Home / 20,877.84-31,313.34-6,837.66

Finding the Fourth Proportional to 20,877.84, 31,313.34 and 6,837.66

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Solution

The fourth proportional to 20,877.84, 31,313.34 and 6,837.66 is: 10,255.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,877.84 : 31,313.34 = 6,837.66 : x
  2. Step 2: Convert to fraction form
    20,877.84/31,313.34 = 6,837.66/x
  3. Step 3: Cross multiply
    20,877.84x = 31,313.34 × 6,837.66
  4. Step 4: Simplify right side
    20,877.84x = 214,109,972.38
  5. Step 5: Solve for x
    x = 214,109,972.38/20,877.84
  6. Step 6: Final answer
    x = 10,255.37

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1.5x scale

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.