Home / 27,118.80-40,678.20-17,817.60

Finding the Fourth Proportional to 27,118.80, 40,678.20 and 17,817.60

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Solution

The fourth proportional to 27,118.80, 40,678.20 and 17,817.60 is: 26,726.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,118.80 : 40,678.20 = 17,817.60 : x
  2. Step 2: Convert to fraction form
    27,118.80/40,678.20 = 17,817.60/x
  3. Step 3: Cross multiply
    27,118.80x = 40,678.20 × 17,817.60
  4. Step 4: Simplify right side
    27,118.80x = 724,787,896.32
  5. Step 5: Solve for x
    x = 724,787,896.32/27,118.80
  6. Step 6: Final answer
    x = 26,726.40

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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.