Home / 20,998.26-31,502.52-6,207.12

Finding the Fourth Proportional to 20,998.26, 31,502.52 and 6,207.12

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Solution

The fourth proportional to 20,998.26, 31,502.52 and 6,207.12 is: 9,312.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,998.26 : 31,502.52 = 6,207.12 : x
  2. Step 2: Convert to fraction form
    20,998.26/31,502.52 = 6,207.12/x
  3. Step 3: Cross multiply
    20,998.26x = 31,502.52 × 6,207.12
  4. Step 4: Simplify right side
    20,998.26x = 195,539,921.94
  5. Step 5: Solve for x
    x = 195,539,921.94/20,998.26
  6. Step 6: Final answer
    x = 9,312.20

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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.