Home / 25,776.36-38,658.38-18,838.10

Finding the Fourth Proportional to 25,776.36, 38,658.38 and 18,838.10

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Solution

The fourth proportional to 25,776.36, 38,658.38 and 18,838.10 is: 28,252.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,776.36 : 38,658.38 = 18,838.10 : x
  2. Step 2: Convert to fraction form
    25,776.36/38,658.38 = 18,838.10/x
  3. Step 3: Cross multiply
    25,776.36x = 38,658.38 × 18,838.10
  4. Step 4: Simplify right side
    25,776.36x = 728,250,430.73
  5. Step 5: Solve for x
    x = 728,250,430.73/25,776.36
  6. Step 6: Final answer
    x = 28,252.65

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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.