Home / 27,985.22-38,620.46-15,239.24

Finding the Fourth Proportional to 27,985.22, 38,620.46 and 15,239.24

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Solution

The fourth proportional to 27,985.22, 38,620.46 and 15,239.24 is: 21,030.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,985.22 : 38,620.46 = 15,239.24 : x
  2. Step 2: Convert to fraction form
    27,985.22/38,620.46 = 15,239.24/x
  3. Step 3: Cross multiply
    27,985.22x = 38,620.46 × 15,239.24
  4. Step 4: Simplify right side
    27,985.22x = 588,546,458.85
  5. Step 5: Solve for x
    x = 588,546,458.85/27,985.22
  6. Step 6: Final answer
    x = 21,030.62

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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.