Home / 25,638.12-38,391.84-21,701.52

Finding the Fourth Proportional to 25,638.12, 38,391.84 and 21,701.52

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Solution

The fourth proportional to 25,638.12, 38,391.84 and 21,701.52 is: 32,496.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,638.12 : 38,391.84 = 21,701.52 : x
  2. Step 2: Convert to fraction form
    25,638.12/38,391.84 = 21,701.52/x
  3. Step 3: Cross multiply
    25,638.12x = 38,391.84 × 21,701.52
  4. Step 4: Simplify right side
    25,638.12x = 833,161,283.60
  5. Step 5: Solve for x
    x = 833,161,283.60/25,638.12
  6. Step 6: Final answer
    x = 32,496.97

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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.