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Finding the Fourth Proportional to 25,343.47, 38,012.77 and 7,808.59

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Solution

The fourth proportional to 25,343.47, 38,012.77 and 7,808.59 is: 11,712.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,343.47 : 38,012.77 = 7,808.59 : x
  2. Step 2: Convert to fraction form
    25,343.47/38,012.77 = 7,808.59/x
  3. Step 3: Cross multiply
    25,343.47x = 38,012.77 × 7,808.59
  4. Step 4: Simplify right side
    25,343.47x = 296,826,135.69
  5. Step 5: Solve for x
    x = 296,826,135.69/25,343.47
  6. Step 6: Final answer
    x = 11,712.13

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.