Home / 38,378.07-52,961.54-21,382.52

Finding the Fourth Proportional to 38,378.07, 52,961.54 and 21,382.52

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Solution

The fourth proportional to 38,378.07, 52,961.54 and 21,382.52 is: 29,507.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,378.07 : 52,961.54 = 21,382.52 : x
  2. Step 2: Convert to fraction form
    38,378.07/52,961.54 = 21,382.52/x
  3. Step 3: Cross multiply
    38,378.07x = 52,961.54 × 21,382.52
  4. Step 4: Simplify right side
    38,378.07x = 1,132,450,816.56
  5. Step 5: Solve for x
    x = 1,132,450,816.56/38,378.07
  6. Step 6: Final answer
    x = 29,507.76

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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.