Home / 22,161.80-30,580.54-13,552.31

Finding the Fourth Proportional to 22,161.80, 30,580.54 and 13,552.31

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Solution

The fourth proportional to 22,161.80, 30,580.54 and 13,552.31 is: 18,700.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,161.80 : 30,580.54 = 13,552.31 : x
  2. Step 2: Convert to fraction form
    22,161.80/30,580.54 = 13,552.31/x
  3. Step 3: Cross multiply
    22,161.80x = 30,580.54 × 13,552.31
  4. Step 4: Simplify right side
    22,161.80x = 414,437,000.62
  5. Step 5: Solve for x
    x = 414,437,000.62/22,161.80
  6. Step 6: Final answer
    x = 18,700.51

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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.