Home / 27,556.04-38,028.12-15,618.90

Finding the Fourth Proportional to 27,556.04, 38,028.12 and 15,618.90

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Solution

The fourth proportional to 27,556.04, 38,028.12 and 15,618.90 is: 21,554.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,556.04 : 38,028.12 = 15,618.90 : x
  2. Step 2: Convert to fraction form
    27,556.04/38,028.12 = 15,618.90/x
  3. Step 3: Cross multiply
    27,556.04x = 38,028.12 × 15,618.90
  4. Step 4: Simplify right side
    27,556.04x = 593,957,403.47
  5. Step 5: Solve for x
    x = 593,957,403.47/27,556.04
  6. Step 6: Final answer
    x = 21,554.53

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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.