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Finding the Fourth Proportional to 27,328.79, 40,978.06 and 9,554.69

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Solution

The fourth proportional to 27,328.79, 40,978.06 and 9,554.69 is: 14,326.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,328.79 : 40,978.06 = 9,554.69 : x
  2. Step 2: Convert to fraction form
    27,328.79/40,978.06 = 9,554.69/x
  3. Step 3: Cross multiply
    27,328.79x = 40,978.06 × 9,554.69
  4. Step 4: Simplify right side
    27,328.79x = 391,532,738.66
  5. Step 5: Solve for x
    x = 391,532,738.66/27,328.79
  6. Step 6: Final answer
    x = 14,326.75

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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.