Home / 25,818.12-35,640.81-19,847.70

Finding the Fourth Proportional to 25,818.12, 35,640.81 and 19,847.70

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Solution

The fourth proportional to 25,818.12, 35,640.81 and 19,847.70 is: 27,398.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,818.12 : 35,640.81 = 19,847.70 : x
  2. Step 2: Convert to fraction form
    25,818.12/35,640.81 = 19,847.70/x
  3. Step 3: Cross multiply
    25,818.12x = 35,640.81 × 19,847.70
  4. Step 4: Simplify right side
    25,818.12x = 707,388,104.64
  5. Step 5: Solve for x
    x = 707,388,104.64/25,818.12
  6. Step 6: Final answer
    x = 27,398.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.