Home / 27,638.47-38,147.24-17,564.95

Finding the Fourth Proportional to 27,638.47, 38,147.24 and 17,564.95

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Solution

The fourth proportional to 27,638.47, 38,147.24 and 17,564.95 is: 24,243.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,638.47 : 38,147.24 = 17,564.95 : x
  2. Step 2: Convert to fraction form
    27,638.47/38,147.24 = 17,564.95/x
  3. Step 3: Cross multiply
    27,638.47x = 38,147.24 × 17,564.95
  4. Step 4: Simplify right side
    27,638.47x = 670,054,363.24
  5. Step 5: Solve for x
    x = 670,054,363.24/27,638.47
  6. Step 6: Final answer
    x = 24,243.54

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1.5x scale

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.