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Finding the Fourth Proportional to 27,554.88, 38,024.88 and 15,618

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Solution

The fourth proportional to 27,554.88, 38,024.88 and 15,618 is: 21,552.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,554.88 : 38,024.88 = 15,618 : x
  2. Step 2: Convert to fraction form
    27,554.88/38,024.88 = 15,618/x
  3. Step 3: Cross multiply
    27,554.88x = 38,024.88 × 15,618
  4. Step 4: Simplify right side
    27,554.88x = 593,872,575.84
  5. Step 5: Solve for x
    x = 593,872,575.84/27,554.88
  6. Step 6: Final answer
    x = 21,552.36

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Why These Related Problems?

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