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Finding the Fourth Proportional to 38,162.79, 52,664.31 and 21,395.79

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Solution

The fourth proportional to 38,162.79, 52,664.31 and 21,395.79 is: 29,526.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,162.79 : 52,664.31 = 21,395.79 : x
  2. Step 2: Convert to fraction form
    38,162.79/52,664.31 = 21,395.79/x
  3. Step 3: Cross multiply
    38,162.79x = 52,664.31 × 21,395.79
  4. Step 4: Simplify right side
    38,162.79x = 1,126,794,517.25
  5. Step 5: Solve for x
    x = 1,126,794,517.25/38,162.79
  6. Step 6: Final answer
    x = 29,526.00

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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.