Home / 28,213.75-38,934.98-15,293.07

Finding the Fourth Proportional to 28,213.75, 38,934.98 and 15,293.07

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Solution

The fourth proportional to 28,213.75, 38,934.98 and 15,293.07 is: 21,104.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,213.75 : 38,934.98 = 15,293.07 : x
  2. Step 2: Convert to fraction form
    28,213.75/38,934.98 = 15,293.07/x
  3. Step 3: Cross multiply
    28,213.75x = 38,934.98 × 15,293.07
  4. Step 4: Simplify right side
    28,213.75x = 595,435,355.47
  5. Step 5: Solve for x
    x = 595,435,355.47/28,213.75
  6. Step 6: Final answer
    x = 21,104.44

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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.