Home / 27,667.11-38,180.42-15,730.45

Finding the Fourth Proportional to 27,667.11, 38,180.42 and 15,730.45

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Solution

The fourth proportional to 27,667.11, 38,180.42 and 15,730.45 is: 21,707.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,667.11 : 38,180.42 = 15,730.45 : x
  2. Step 2: Convert to fraction form
    27,667.11/38,180.42 = 15,730.45/x
  3. Step 3: Cross multiply
    27,667.11x = 38,180.42 × 15,730.45
  4. Step 4: Simplify right side
    27,667.11x = 600,595,187.79
  5. Step 5: Solve for x
    x = 600,595,187.79/27,667.11
  6. Step 6: Final answer
    x = 21,707.91

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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.