Home / 25,787.70-38,645.10-15,897.60

Finding the Fourth Proportional to 25,787.70, 38,645.10 and 15,897.60

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Solution

The fourth proportional to 25,787.70, 38,645.10 and 15,897.60 is: 23,823.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,787.70 : 38,645.10 = 15,897.60 : x
  2. Step 2: Convert to fraction form
    25,787.70/38,645.10 = 15,897.60/x
  3. Step 3: Cross multiply
    25,787.70x = 38,645.10 × 15,897.60
  4. Step 4: Simplify right side
    25,787.70x = 614,364,341.76
  5. Step 5: Solve for x
    x = 614,364,341.76/25,787.70
  6. Step 6: Final answer
    x = 23,823.93

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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.