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Finding the Fourth Proportional to 15,392.72, 23,090.39 and 4,859.92

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Solution

The fourth proportional to 15,392.72, 23,090.39 and 4,859.92 is: 7,290.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,392.72 : 23,090.39 = 4,859.92 : x
  2. Step 2: Convert to fraction form
    15,392.72/23,090.39 = 4,859.92/x
  3. Step 3: Cross multiply
    15,392.72x = 23,090.39 × 4,859.92
  4. Step 4: Simplify right side
    15,392.72x = 112,217,448.17
  5. Step 5: Solve for x
    x = 112,217,448.17/15,392.72
  6. Step 6: Final answer
    x = 7,290.29

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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.