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Finding the Fourth Proportional to 22,178, 30,552.04 and 18,981.03

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Solution

The fourth proportional to 22,178, 30,552.04 and 18,981.03 is: 26,147.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,178 : 30,552.04 = 18,981.03 : x
  2. Step 2: Convert to fraction form
    22,178/30,552.04 = 18,981.03/x
  3. Step 3: Cross multiply
    22,178x = 30,552.04 × 18,981.03
  4. Step 4: Simplify right side
    22,178x = 579,909,187.80
  5. Step 5: Solve for x
    x = 579,909,187.80/22,178
  6. Step 6: Final answer
    x = 26,147.95

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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.