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Finding the Fourth Proportional to 39,398.56, 54,354 and 25,259.68

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Solution

The fourth proportional to 39,398.56, 54,354 and 25,259.68 is: 34,848.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,398.56 : 54,354 = 25,259.68 : x
  2. Step 2: Convert to fraction form
    39,398.56/54,354 = 25,259.68/x
  3. Step 3: Cross multiply
    39,398.56x = 54,354 × 25,259.68
  4. Step 4: Simplify right side
    39,398.56x = 1,372,964,646.72
  5. Step 5: Solve for x
    x = 1,372,964,646.72/39,398.56
  6. Step 6: Final answer
    x = 34,848.09

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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.