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Finding the Fourth Proportional to 22,689.86, 33,881.83 and 18,538.07

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Solution

The fourth proportional to 22,689.86, 33,881.83 and 18,538.07 is: 27,682.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,689.86 : 33,881.83 = 18,538.07 : x
  2. Step 2: Convert to fraction form
    22,689.86/33,881.83 = 18,538.07/x
  3. Step 3: Cross multiply
    22,689.86x = 33,881.83 × 18,538.07
  4. Step 4: Simplify right side
    22,689.86x = 628,103,520.51
  5. Step 5: Solve for x
    x = 628,103,520.51/22,689.86
  6. Step 6: Final answer
    x = 27,682.13

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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.