Home / 22,007.85-30,371.21-12,445.80

Finding the Fourth Proportional to 22,007.85, 30,371.21 and 12,445.80

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Solution

The fourth proportional to 22,007.85, 30,371.21 and 12,445.80 is: 17,175.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,007.85 : 30,371.21 = 12,445.80 : x
  2. Step 2: Convert to fraction form
    22,007.85/30,371.21 = 12,445.80/x
  3. Step 3: Cross multiply
    22,007.85x = 30,371.21 × 12,445.80
  4. Step 4: Simplify right side
    22,007.85x = 377,993,943.19
  5. Step 5: Solve for x
    x = 377,993,943.19/22,007.85
  6. Step 6: Final answer
    x = 17,175.41

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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.