Home / 26,220.72-39,316.40-8,680.96

Finding the Fourth Proportional to 26,220.72, 39,316.40 and 8,680.96

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Solution

The fourth proportional to 26,220.72, 39,316.40 and 8,680.96 is: 13,016.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,220.72 : 39,316.40 = 8,680.96 : x
  2. Step 2: Convert to fraction form
    26,220.72/39,316.40 = 8,680.96/x
  3. Step 3: Cross multiply
    26,220.72x = 39,316.40 × 8,680.96
  4. Step 4: Simplify right side
    26,220.72x = 341,304,095.74
  5. Step 5: Solve for x
    x = 341,304,095.74/26,220.72
  6. Step 6: Final answer
    x = 13,016.58

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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.