Home / 20,565.62-30,672.97-20,210.23

Finding the Fourth Proportional to 20,565.62, 30,672.97 and 20,210.23

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Solution

The fourth proportional to 20,565.62, 30,672.97 and 20,210.23 is: 30,142.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,565.62 : 30,672.97 = 20,210.23 : x
  2. Step 2: Convert to fraction form
    20,565.62/30,672.97 = 20,210.23/x
  3. Step 3: Cross multiply
    20,565.62x = 30,672.97 × 20,210.23
  4. Step 4: Simplify right side
    20,565.62x = 619,907,778.48
  5. Step 5: Solve for x
    x = 619,907,778.48/20,565.62
  6. Step 6: Final answer
    x = 30,142.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.