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Finding the Fourth Proportional to 36,988.92, 51,044.88 and 20,221.92

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Solution

The fourth proportional to 36,988.92, 51,044.88 and 20,221.92 is: 27,906.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,988.92 : 51,044.88 = 20,221.92 : x
  2. Step 2: Convert to fraction form
    36,988.92/51,044.88 = 20,221.92/x
  3. Step 3: Cross multiply
    36,988.92x = 51,044.88 × 20,221.92
  4. Step 4: Simplify right side
    36,988.92x = 1,032,225,479.77
  5. Step 5: Solve for x
    x = 1,032,225,479.77/36,988.92
  6. Step 6: Final answer
    x = 27,906.34

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1.5x scale

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.