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Finding the Fourth Proportional to 18,089.11, 27,133.41 and 17,642.40

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Solution

The fourth proportional to 18,089.11, 27,133.41 and 17,642.40 is: 26,463.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,089.11 : 27,133.41 = 17,642.40 : x
  2. Step 2: Convert to fraction form
    18,089.11/27,133.41 = 17,642.40/x
  3. Step 3: Cross multiply
    18,089.11x = 27,133.41 × 17,642.40
  4. Step 4: Simplify right side
    18,089.11x = 478,698,472.58
  5. Step 5: Solve for x
    x = 478,698,472.58/18,089.11
  6. Step 6: Final answer
    x = 26,463.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.