Home / 40.16-55.35-29.23

Finding the Fourth Proportional to 40.16, 55.35 and 29.23

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Solution

The fourth proportional to 40.16, 55.35 and 29.23 is: 40.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    40.16 : 55.35 = 29.23 : x
  2. Step 2: Convert to fraction form
    40.16/55.35 = 29.23/x
  3. Step 3: Cross multiply
    40.16x = 55.35 × 29.23
  4. Step 4: Simplify right side
    40.16x = 1,617.88
  5. Step 5: Solve for x
    x = 1,617.88/40.16
  6. Step 6: Final answer
    x = 40.29

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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.