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Finding the Fourth Proportional to 28,712.27, 43,064.99 and 7,653.89

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Solution

The fourth proportional to 28,712.27, 43,064.99 and 7,653.89 is: 11,479.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,712.27 : 43,064.99 = 7,653.89 : x
  2. Step 2: Convert to fraction form
    28,712.27/43,064.99 = 7,653.89/x
  3. Step 3: Cross multiply
    28,712.27x = 43,064.99 × 7,653.89
  4. Step 4: Simplify right side
    28,712.27x = 329,614,823.11
  5. Step 5: Solve for x
    x = 329,614,823.11/28,712.27
  6. Step 6: Final answer
    x = 11,479.93

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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.