Home / 25,915.31-38,822.85-21,705.33

Finding the Fourth Proportional to 25,915.31, 38,822.85 and 21,705.33

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Solution

The fourth proportional to 25,915.31, 38,822.85 and 21,705.33 is: 32,516.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,915.31 : 38,822.85 = 21,705.33 : x
  2. Step 2: Convert to fraction form
    25,915.31/38,822.85 = 21,705.33/x
  3. Step 3: Cross multiply
    25,915.31x = 38,822.85 × 21,705.33
  4. Step 4: Simplify right side
    25,915.31x = 842,662,770.79
  5. Step 5: Solve for x
    x = 842,662,770.79/25,915.31
  6. Step 6: Final answer
    x = 32,516.03

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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.