Home / 28,638.31-39,431.05-26,013.91

Finding the Fourth Proportional to 28,638.31, 39,431.05 and 26,013.91

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Solution

The fourth proportional to 28,638.31, 39,431.05 and 26,013.91 is: 35,817.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,638.31 : 39,431.05 = 26,013.91 : x
  2. Step 2: Convert to fraction form
    28,638.31/39,431.05 = 26,013.91/x
  3. Step 3: Cross multiply
    28,638.31x = 39,431.05 × 26,013.91
  4. Step 4: Simplify right side
    28,638.31x = 1,025,755,785.91
  5. Step 5: Solve for x
    x = 1,025,755,785.91/28,638.31
  6. Step 6: Final answer
    x = 35,817.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.