Home / 27,945.80-41,918.70-9,225.80

Finding the Fourth Proportional to 27,945.80, 41,918.70 and 9,225.80

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Solution

The fourth proportional to 27,945.80, 41,918.70 and 9,225.80 is: 13,838.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,945.80 : 41,918.70 = 9,225.80 : x
  2. Step 2: Convert to fraction form
    27,945.80/41,918.70 = 9,225.80/x
  3. Step 3: Cross multiply
    27,945.80x = 41,918.70 × 9,225.80
  4. Step 4: Simplify right side
    27,945.80x = 386,733,542.46
  5. Step 5: Solve for x
    x = 386,733,542.46/27,945.80
  6. Step 6: Final answer
    x = 13,838.70

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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.