Home / 26,531.33-39,788.57-8,758.70

Finding the Fourth Proportional to 26,531.33, 39,788.57 and 8,758.70

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Solution

The fourth proportional to 26,531.33, 39,788.57 and 8,758.70 is: 13,135.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,531.33 : 39,788.57 = 8,758.70 : x
  2. Step 2: Convert to fraction form
    26,531.33/39,788.57 = 8,758.70/x
  3. Step 3: Cross multiply
    26,531.33x = 39,788.57 × 8,758.70
  4. Step 4: Simplify right side
    26,531.33x = 348,495,971.01
  5. Step 5: Solve for x
    x = 348,495,971.01/26,531.33
  6. Step 6: Final answer
    x = 13,135.26

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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.