Home / 25,548.16-38,270.40-16,787.20

Finding the Fourth Proportional to 25,548.16, 38,270.40 and 16,787.20

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Solution

The fourth proportional to 25,548.16, 38,270.40 and 16,787.20 is: 25,146.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,548.16 : 38,270.40 = 16,787.20 : x
  2. Step 2: Convert to fraction form
    25,548.16/38,270.40 = 16,787.20/x
  3. Step 3: Cross multiply
    25,548.16x = 38,270.40 × 16,787.20
  4. Step 4: Simplify right side
    25,548.16x = 642,452,858.88
  5. Step 5: Solve for x
    x = 642,452,858.88/25,548.16
  6. Step 6: Final answer
    x = 25,146.74

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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.