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Finding the Fourth Proportional to 18,637, 27,938.49 and 17,013.76

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Solution

The fourth proportional to 18,637, 27,938.49 and 17,013.76 is: 25,505.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,637 : 27,938.49 = 17,013.76 : x
  2. Step 2: Convert to fraction form
    18,637/27,938.49 = 17,013.76/x
  3. Step 3: Cross multiply
    18,637x = 27,938.49 × 17,013.76
  4. Step 4: Simplify right side
    18,637x = 475,338,763.62
  5. Step 5: Solve for x
    x = 475,338,763.62/18,637
  6. Step 6: Final answer
    x = 25,505.11

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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.