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Finding the Fourth Proportional to 39,410, 54,385.80 and 26,856.62

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Solution

The fourth proportional to 39,410, 54,385.80 and 26,856.62 is: 37,062.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,410 : 54,385.80 = 26,856.62 : x
  2. Step 2: Convert to fraction form
    39,410/54,385.80 = 26,856.62/x
  3. Step 3: Cross multiply
    39,410x = 54,385.80 × 26,856.62
  4. Step 4: Simplify right side
    39,410x = 1,460,618,764.00
  5. Step 5: Solve for x
    x = 1,460,618,764.00/39,410
  6. Step 6: Final answer
    x = 37,062.14

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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.