Home / 38,682.20-53,387.42-21,693.31

Finding the Fourth Proportional to 38,682.20, 53,387.42 and 21,693.31

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Solution

The fourth proportional to 38,682.20, 53,387.42 and 21,693.31 is: 29,940.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,682.20 : 53,387.42 = 21,693.31 : x
  2. Step 2: Convert to fraction form
    38,682.20/53,387.42 = 21,693.31/x
  3. Step 3: Cross multiply
    38,682.20x = 53,387.42 × 21,693.31
  4. Step 4: Simplify right side
    38,682.20x = 1,158,149,852.16
  5. Step 5: Solve for x
    x = 1,158,149,852.16/38,682.20
  6. Step 6: Final answer
    x = 29,940.12

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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.