Home / 21,585.47-32,378.21-20,367.23

Finding the Fourth Proportional to 21,585.47, 32,378.21 and 20,367.23

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Solution

The fourth proportional to 21,585.47, 32,378.21 and 20,367.23 is: 30,550.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,585.47 : 32,378.21 = 20,367.23 : x
  2. Step 2: Convert to fraction form
    21,585.47/32,378.21 = 20,367.23/x
  3. Step 3: Cross multiply
    21,585.47x = 32,378.21 × 20,367.23
  4. Step 4: Simplify right side
    21,585.47x = 659,454,186.33
  5. Step 5: Solve for x
    x = 659,454,186.33/21,585.47
  6. Step 6: Final answer
    x = 30,550.84

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Double scale
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Similar ratio
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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.