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Finding the Fourth Proportional to 58.83, 88.19 and 20.28

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Solution

The fourth proportional to 58.83, 88.19 and 20.28 is: 30.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    58.83 : 88.19 = 20.28 : x
  2. Step 2: Convert to fraction form
    58.83/88.19 = 20.28/x
  3. Step 3: Cross multiply
    58.83x = 88.19 × 20.28
  4. Step 4: Simplify right side
    58.83x = 1,788.80
  5. Step 5: Solve for x
    x = 1,788.80/58.83
  6. Step 6: Final answer
    x = 30.41

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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.