Home / 22,012.32-30,369.42-20,335.62

Finding the Fourth Proportional to 22,012.32, 30,369.42 and 20,335.62

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Solution

The fourth proportional to 22,012.32, 30,369.42 and 20,335.62 is: 28,056.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,012.32 : 30,369.42 = 20,335.62 : x
  2. Step 2: Convert to fraction form
    22,012.32/30,369.42 = 20,335.62/x
  3. Step 3: Cross multiply
    22,012.32x = 30,369.42 × 20,335.62
  4. Step 4: Simplify right side
    22,012.32x = 617,580,984.74
  5. Step 5: Solve for x
    x = 617,580,984.74/22,012.32
  6. Step 6: Final answer
    x = 28,056.15

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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.