Home / 27,986.90-41,979.45-9,267.80

Finding the Fourth Proportional to 27,986.90, 41,979.45 and 9,267.80

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Solution

The fourth proportional to 27,986.90, 41,979.45 and 9,267.80 is: 13,901.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,986.90 : 41,979.45 = 9,267.80 : x
  2. Step 2: Convert to fraction form
    27,986.90/41,979.45 = 9,267.80/x
  3. Step 3: Cross multiply
    27,986.90x = 41,979.45 × 9,267.80
  4. Step 4: Simplify right side
    27,986.90x = 389,057,146.71
  5. Step 5: Solve for x
    x = 389,057,146.71/27,986.90
  6. Step 6: Final answer
    x = 13,901.40

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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.