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Finding the Fourth Proportional to 58.69, 88.01 and 20.17

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Solution

The fourth proportional to 58.69, 88.01 and 20.17 is: 30.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    58.69 : 88.01 = 20.17 : x
  2. Step 2: Convert to fraction form
    58.69/88.01 = 20.17/x
  3. Step 3: Cross multiply
    58.69x = 88.01 × 20.17
  4. Step 4: Simplify right side
    58.69x = 1,774.84
  5. Step 5: Solve for x
    x = 1,774.84/58.69
  6. Step 6: Final answer
    x = 30.24

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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.