Home / 26,531.68-39,797.70-12,638.56

Finding the Fourth Proportional to 26,531.68, 39,797.70 and 12,638.56

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Solution

The fourth proportional to 26,531.68, 39,797.70 and 12,638.56 is: 18,957.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,531.68 : 39,797.70 = 12,638.56 : x
  2. Step 2: Convert to fraction form
    26,531.68/39,797.70 = 12,638.56/x
  3. Step 3: Cross multiply
    26,531.68x = 39,797.70 × 12,638.56
  4. Step 4: Simplify right side
    26,531.68x = 502,985,619.31
  5. Step 5: Solve for x
    x = 502,985,619.31/26,531.68
  6. Step 6: Final answer
    x = 18,957.93

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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.