Home / 20,378.19-30,565.23-5,588.59

Finding the Fourth Proportional to 20,378.19, 30,565.23 and 5,588.59

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Solution

The fourth proportional to 20,378.19, 30,565.23 and 5,588.59 is: 8,382.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,378.19 : 30,565.23 = 5,588.59 : x
  2. Step 2: Convert to fraction form
    20,378.19/30,565.23 = 5,588.59/x
  3. Step 3: Cross multiply
    20,378.19x = 30,565.23 × 5,588.59
  4. Step 4: Simplify right side
    20,378.19x = 170,816,538.73
  5. Step 5: Solve for x
    x = 170,816,538.73/20,378.19
  6. Step 6: Final answer
    x = 8,382.32

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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.