Home / 27,982.18-38,615.34-15,235.17

Finding the Fourth Proportional to 27,982.18, 38,615.34 and 15,235.17

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Solution

The fourth proportional to 27,982.18, 38,615.34 and 15,235.17 is: 21,024.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,982.18 : 38,615.34 = 15,235.17 : x
  2. Step 2: Convert to fraction form
    27,982.18/38,615.34 = 15,235.17/x
  3. Step 3: Cross multiply
    27,982.18x = 38,615.34 × 15,235.17
  4. Step 4: Simplify right side
    27,982.18x = 588,311,181.83
  5. Step 5: Solve for x
    x = 588,311,181.83/27,982.18
  6. Step 6: Final answer
    x = 21,024.49

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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.