Home / 28,141.52-38,833.83-15,392.21

Finding the Fourth Proportional to 28,141.52, 38,833.83 and 15,392.21

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Solution

The fourth proportional to 28,141.52, 38,833.83 and 15,392.21 is: 21,240.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,141.52 : 38,833.83 = 15,392.21 : x
  2. Step 2: Convert to fraction form
    28,141.52/38,833.83 = 15,392.21/x
  3. Step 3: Cross multiply
    28,141.52x = 38,833.83 × 15,392.21
  4. Step 4: Simplify right side
    28,141.52x = 597,738,272.30
  5. Step 5: Solve for x
    x = 597,738,272.30/28,141.52
  6. Step 6: Final answer
    x = 21,240.44

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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.