Home / 20,875.66-31,314.97-8,395.75

Finding the Fourth Proportional to 20,875.66, 31,314.97 and 8,395.75

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Solution

The fourth proportional to 20,875.66, 31,314.97 and 8,395.75 is: 12,594.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,875.66 : 31,314.97 = 8,395.75 : x
  2. Step 2: Convert to fraction form
    20,875.66/31,314.97 = 8,395.75/x
  3. Step 3: Cross multiply
    20,875.66x = 31,314.97 × 8,395.75
  4. Step 4: Simplify right side
    20,875.66x = 262,912,659.38
  5. Step 5: Solve for x
    x = 262,912,659.38/20,875.66
  6. Step 6: Final answer
    x = 12,594.22

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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.