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Finding the Fourth Proportional to 36,969.52, 55,439.52 and 21,398.08

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Solution

The fourth proportional to 36,969.52, 55,439.52 and 21,398.08 is: 32,088.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,969.52 : 55,439.52 = 21,398.08 : x
  2. Step 2: Convert to fraction form
    36,969.52/55,439.52 = 21,398.08/x
  3. Step 3: Cross multiply
    36,969.52x = 55,439.52 × 21,398.08
  4. Step 4: Simplify right side
    36,969.52x = 1,186,299,284.12
  5. Step 5: Solve for x
    x = 1,186,299,284.12/36,969.52
  6. Step 6: Final answer
    x = 32,088.58

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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.