Home / 20,895.15-31,344.75-6,103.74

Finding the Fourth Proportional to 20,895.15, 31,344.75 and 6,103.74

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Solution

The fourth proportional to 20,895.15, 31,344.75 and 6,103.74 is: 9,156.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,895.15 : 31,344.75 = 6,103.74 : x
  2. Step 2: Convert to fraction form
    20,895.15/31,344.75 = 6,103.74/x
  3. Step 3: Cross multiply
    20,895.15x = 31,344.75 × 6,103.74
  4. Step 4: Simplify right side
    20,895.15x = 191,320,204.37
  5. Step 5: Solve for x
    x = 191,320,204.37/20,895.15
  6. Step 6: Final answer
    x = 9,156.20

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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.