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Finding the Fourth Proportional to 24.64, 36.64 and 24.40

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Solution

The fourth proportional to 24.64, 36.64 and 24.40 is: 36.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    24.64 : 36.64 = 24.40 : x
  2. Step 2: Convert to fraction form
    24.64/36.64 = 24.40/x
  3. Step 3: Cross multiply
    24.64x = 36.64 × 24.40
  4. Step 4: Simplify right side
    24.64x = 894.02
  5. Step 5: Solve for x
    x = 894.02/24.64
  6. Step 6: Final answer
    x = 36.28

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.