Home / 27,556.59-38,031.06-15,618.65

Finding the Fourth Proportional to 27,556.59, 38,031.06 and 15,618.65

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Solution

The fourth proportional to 27,556.59, 38,031.06 and 15,618.65 is: 21,555.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,556.59 : 38,031.06 = 15,618.65 : x
  2. Step 2: Convert to fraction form
    27,556.59/38,031.06 = 15,618.65/x
  3. Step 3: Cross multiply
    27,556.59x = 38,031.06 × 15,618.65
  4. Step 4: Simplify right side
    27,556.59x = 593,993,625.11
  5. Step 5: Solve for x
    x = 593,993,625.11/27,556.59
  6. Step 6: Final answer
    x = 21,555.41

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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.