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Finding the Fourth Proportional to 25,879.95, 38,828.13 and 9,239.63

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Solution

The fourth proportional to 25,879.95, 38,828.13 and 9,239.63 is: 13,862.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,879.95 : 38,828.13 = 9,239.63 : x
  2. Step 2: Convert to fraction form
    25,879.95/38,828.13 = 9,239.63/x
  3. Step 3: Cross multiply
    25,879.95x = 38,828.13 × 9,239.63
  4. Step 4: Simplify right side
    25,879.95x = 358,757,554.79
  5. Step 5: Solve for x
    x = 358,757,554.79/25,879.95
  6. Step 6: Final answer
    x = 13,862.37

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1.5x scale

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.