Home / 27,635.18-38,106.42-18,667.11

Finding the Fourth Proportional to 27,635.18, 38,106.42 and 18,667.11

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Solution

The fourth proportional to 27,635.18, 38,106.42 and 18,667.11 is: 25,740.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,635.18 : 38,106.42 = 18,667.11 : x
  2. Step 2: Convert to fraction form
    27,635.18/38,106.42 = 18,667.11/x
  3. Step 3: Cross multiply
    27,635.18x = 38,106.42 × 18,667.11
  4. Step 4: Simplify right side
    27,635.18x = 711,336,749.90
  5. Step 5: Solve for x
    x = 711,336,749.90/27,635.18
  6. Step 6: Final answer
    x = 25,740.27

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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.