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Finding the Fourth Proportional to 38,120.36, 52,606.02 and 21,353

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Solution

The fourth proportional to 38,120.36, 52,606.02 and 21,353 is: 29,467.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,120.36 : 52,606.02 = 21,353 : x
  2. Step 2: Convert to fraction form
    38,120.36/52,606.02 = 21,353/x
  3. Step 3: Cross multiply
    38,120.36x = 52,606.02 × 21,353
  4. Step 4: Simplify right side
    38,120.36x = 1,123,296,345.06
  5. Step 5: Solve for x
    x = 1,123,296,345.06/38,120.36
  6. Step 6: Final answer
    x = 29,467.10

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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.