Home / 20,725.18-31,081.29-9,026.62

Finding the Fourth Proportional to 20,725.18, 31,081.29 and 9,026.62

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Solution

The fourth proportional to 20,725.18, 31,081.29 and 9,026.62 is: 13,537.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,725.18 : 31,081.29 = 9,026.62 : x
  2. Step 2: Convert to fraction form
    20,725.18/31,081.29 = 9,026.62/x
  3. Step 3: Cross multiply
    20,725.18x = 31,081.29 × 9,026.62
  4. Step 4: Simplify right side
    20,725.18x = 280,558,993.94
  5. Step 5: Solve for x
    x = 280,558,993.94/20,725.18
  6. Step 6: Final answer
    x = 13,537.11

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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.