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Finding the Fourth Proportional to 39,655.88, 54,734.69 and 26,930.30

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Solution

The fourth proportional to 39,655.88, 54,734.69 and 26,930.30 is: 37,170.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,655.88 : 54,734.69 = 26,930.30 : x
  2. Step 2: Convert to fraction form
    39,655.88/54,734.69 = 26,930.30/x
  3. Step 3: Cross multiply
    39,655.88x = 54,734.69 × 26,930.30
  4. Step 4: Simplify right side
    39,655.88x = 1,474,021,487.46
  5. Step 5: Solve for x
    x = 1,474,021,487.46/39,655.88
  6. Step 6: Final answer
    x = 37,170.32

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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.