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Finding the Fourth Proportional to 30,206.54, 45,266 and 17,030.80

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Solution

The fourth proportional to 30,206.54, 45,266 and 17,030.80 is: 25,521.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,206.54 : 45,266 = 17,030.80 : x
  2. Step 2: Convert to fraction form
    30,206.54/45,266 = 17,030.80/x
  3. Step 3: Cross multiply
    30,206.54x = 45,266 × 17,030.80
  4. Step 4: Simplify right side
    30,206.54x = 770,916,192.80
  5. Step 5: Solve for x
    x = 770,916,192.80/30,206.54
  6. Step 6: Final answer
    x = 25,521.50

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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.