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Finding the Fourth Proportional to 15.04, 20.70 and 14.59

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Solution

The fourth proportional to 15.04, 20.70 and 14.59 is: 20.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    15.04 : 20.70 = 14.59 : x
  2. Step 2: Convert to fraction form
    15.04/20.70 = 14.59/x
  3. Step 3: Cross multiply
    15.04x = 20.70 × 14.59
  4. Step 4: Simplify right side
    15.04x = 302.01
  5. Step 5: Solve for x
    x = 302.01/15.04
  6. Step 6: Final answer
    x = 20.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.