Home / 38,340.58-52,905.41-21,340.75

Finding the Fourth Proportional to 38,340.58, 52,905.41 and 21,340.75

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Solution

The fourth proportional to 38,340.58, 52,905.41 and 21,340.75 is: 29,447.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,340.58 : 52,905.41 = 21,340.75 : x
  2. Step 2: Convert to fraction form
    38,340.58/52,905.41 = 21,340.75/x
  3. Step 3: Cross multiply
    38,340.58x = 52,905.41 × 21,340.75
  4. Step 4: Simplify right side
    38,340.58x = 1,129,041,021.75
  5. Step 5: Solve for x
    x = 1,129,041,021.75/38,340.58
  6. Step 6: Final answer
    x = 29,447.68

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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.