Home / 25,254.10-34,872.69-15,838.90

Finding the Fourth Proportional to 25,254.10, 34,872.69 and 15,838.90

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Solution

The fourth proportional to 25,254.10, 34,872.69 and 15,838.90 is: 21,871.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,254.10 : 34,872.69 = 15,838.90 : x
  2. Step 2: Convert to fraction form
    25,254.10/34,872.69 = 15,838.90/x
  3. Step 3: Cross multiply
    25,254.10x = 34,872.69 × 15,838.90
  4. Step 4: Simplify right side
    25,254.10x = 552,345,049.64
  5. Step 5: Solve for x
    x = 552,345,049.64/25,254.10
  6. Step 6: Final answer
    x = 21,871.50

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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.