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Finding the Fourth Proportional to 25,658.22, 35,402.09 and 15,045.81

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Solution

The fourth proportional to 25,658.22, 35,402.09 and 15,045.81 is: 20,759.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,658.22 : 35,402.09 = 15,045.81 : x
  2. Step 2: Convert to fraction form
    25,658.22/35,402.09 = 15,045.81/x
  3. Step 3: Cross multiply
    25,658.22x = 35,402.09 × 15,045.81
  4. Step 4: Simplify right side
    25,658.22x = 532,653,119.74
  5. Step 5: Solve for x
    x = 532,653,119.74/25,658.22
  6. Step 6: Final answer
    x = 20,759.55

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.