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Finding the Fourth Proportional to 22,506.40, 33,662.40 and 19,007.20

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Solution

The fourth proportional to 22,506.40, 33,662.40 and 19,007.20 is: 28,428.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,506.40 : 33,662.40 = 19,007.20 : x
  2. Step 2: Convert to fraction form
    22,506.40/33,662.40 = 19,007.20/x
  3. Step 3: Cross multiply
    22,506.40x = 33,662.40 × 19,007.20
  4. Step 4: Simplify right side
    22,506.40x = 639,827,969.28
  5. Step 5: Solve for x
    x = 639,827,969.28/22,506.40
  6. Step 6: Final answer
    x = 28,428.71

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1.5x scale

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.