Home / 27,426.80-41,140.20-9,909.20

Finding the Fourth Proportional to 27,426.80, 41,140.20 and 9,909.20

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Solution

The fourth proportional to 27,426.80, 41,140.20 and 9,909.20 is: 14,863.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,426.80 : 41,140.20 = 9,909.20 : x
  2. Step 2: Convert to fraction form
    27,426.80/41,140.20 = 9,909.20/x
  3. Step 3: Cross multiply
    27,426.80x = 41,140.20 × 9,909.20
  4. Step 4: Simplify right side
    27,426.80x = 407,666,469.84
  5. Step 5: Solve for x
    x = 407,666,469.84/27,426.80
  6. Step 6: Final answer
    x = 14,863.80

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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.