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Finding the Fourth Proportional to 18,083.78, 26,948.19 and 17,489.24

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Solution

The fourth proportional to 18,083.78, 26,948.19 and 17,489.24 is: 26,062.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,083.78 : 26,948.19 = 17,489.24 : x
  2. Step 2: Convert to fraction form
    18,083.78/26,948.19 = 17,489.24/x
  3. Step 3: Cross multiply
    18,083.78x = 26,948.19 × 17,489.24
  4. Step 4: Simplify right side
    18,083.78x = 471,303,275.03
  5. Step 5: Solve for x
    x = 471,303,275.03/18,083.78
  6. Step 6: Final answer
    x = 26,062.21

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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.