Home / 20,317.68-27,976.06-17,785.62

Finding the Fourth Proportional to 20,317.68, 27,976.06 and 17,785.62

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Solution

The fourth proportional to 20,317.68, 27,976.06 and 17,785.62 is: 24,489.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,317.68 : 27,976.06 = 17,785.62 : x
  2. Step 2: Convert to fraction form
    20,317.68/27,976.06 = 17,785.62/x
  3. Step 3: Cross multiply
    20,317.68x = 27,976.06 × 17,785.62
  4. Step 4: Simplify right side
    20,317.68x = 497,571,572.26
  5. Step 5: Solve for x
    x = 497,571,572.26/20,317.68
  6. Step 6: Final answer
    x = 24,489.59

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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.