Home / 27,556.96-38,031.58-15,619.02

Finding the Fourth Proportional to 27,556.96, 38,031.58 and 15,619.02

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Solution

The fourth proportional to 27,556.96, 38,031.58 and 15,619.02 is: 21,555.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,556.96 : 38,031.58 = 15,619.02 : x
  2. Step 2: Convert to fraction form
    27,556.96/38,031.58 = 15,619.02/x
  3. Step 3: Cross multiply
    27,556.96x = 38,031.58 × 15,619.02
  4. Step 4: Simplify right side
    27,556.96x = 594,016,008.65
  5. Step 5: Solve for x
    x = 594,016,008.65/27,556.96
  6. Step 6: Final answer
    x = 21,555.93

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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.