Home / 27,711.90-41,567.85-20,330.78

Finding the Fourth Proportional to 27,711.90, 41,567.85 and 20,330.78

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Solution

The fourth proportional to 27,711.90, 41,567.85 and 20,330.78 is: 30,496.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,711.90 : 41,567.85 = 20,330.78 : x
  2. Step 2: Convert to fraction form
    27,711.90/41,567.85 = 20,330.78/x
  3. Step 3: Cross multiply
    27,711.90x = 41,567.85 × 20,330.78
  4. Step 4: Simplify right side
    27,711.90x = 845,106,605.58
  5. Step 5: Solve for x
    x = 845,106,605.58/27,711.90
  6. Step 6: Final answer
    x = 30,496.16

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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.