Home / 39,456.66-54,449.60-21,551.30

Finding the Fourth Proportional to 39,456.66, 54,449.60 and 21,551.30

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Solution

The fourth proportional to 39,456.66, 54,449.60 and 21,551.30 is: 29,740.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,456.66 : 54,449.60 = 21,551.30 : x
  2. Step 2: Convert to fraction form
    39,456.66/54,449.60 = 21,551.30/x
  3. Step 3: Cross multiply
    39,456.66x = 54,449.60 × 21,551.30
  4. Step 4: Simplify right side
    39,456.66x = 1,173,459,664.48
  5. Step 5: Solve for x
    x = 1,173,459,664.48/39,456.66
  6. Step 6: Final answer
    x = 29,740.47

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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.