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Finding the Fourth Proportional to 18,290.49, 27,472.19 and 17,258.91

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Solution

The fourth proportional to 18,290.49, 27,472.19 and 17,258.91 is: 25,922.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,290.49 : 27,472.19 = 17,258.91 : x
  2. Step 2: Convert to fraction form
    18,290.49/27,472.19 = 17,258.91/x
  3. Step 3: Cross multiply
    18,290.49x = 27,472.19 × 17,258.91
  4. Step 4: Simplify right side
    18,290.49x = 474,139,968.42
  5. Step 5: Solve for x
    x = 474,139,968.42/18,290.49
  6. Step 6: Final answer
    x = 25,922.76

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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.