Home / 20,348.11-30,537.78-9,106.93

Finding the Fourth Proportional to 20,348.11, 30,537.78 and 9,106.93

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Solution

The fourth proportional to 20,348.11, 30,537.78 and 9,106.93 is: 13,667.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,348.11 : 30,537.78 = 9,106.93 : x
  2. Step 2: Convert to fraction form
    20,348.11/30,537.78 = 9,106.93/x
  3. Step 3: Cross multiply
    20,348.11x = 30,537.78 × 9,106.93
  4. Step 4: Simplify right side
    20,348.11x = 278,105,424.82
  5. Step 5: Solve for x
    x = 278,105,424.82/20,348.11
  6. Step 6: Final answer
    x = 13,667.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.