Home / 27,990.39-41,981.90-9,265.79

Finding the Fourth Proportional to 27,990.39, 41,981.90 and 9,265.79

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Solution

The fourth proportional to 27,990.39, 41,981.90 and 9,265.79 is: 13,897.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,990.39 : 41,981.90 = 9,265.79 : x
  2. Step 2: Convert to fraction form
    27,990.39/41,981.90 = 9,265.79/x
  3. Step 3: Cross multiply
    27,990.39x = 41,981.90 × 9,265.79
  4. Step 4: Simplify right side
    27,990.39x = 388,995,259.29
  5. Step 5: Solve for x
    x = 388,995,259.29/27,990.39
  6. Step 6: Final answer
    x = 13,897.46

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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.