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Finding the Fourth Proportional to 35,284, 48,690.24 and 21,134.08

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Solution

The fourth proportional to 35,284, 48,690.24 and 21,134.08 is: 29,164.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,284 : 48,690.24 = 21,134.08 : x
  2. Step 2: Convert to fraction form
    35,284/48,690.24 = 21,134.08/x
  3. Step 3: Cross multiply
    35,284x = 48,690.24 × 21,134.08
  4. Step 4: Simplify right side
    35,284x = 1,029,023,427.38
  5. Step 5: Solve for x
    x = 1,029,023,427.38/35,284
  6. Step 6: Final answer
    x = 29,164.02

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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.