Home / 21,272.76-31,928.82-10,750.19

Finding the Fourth Proportional to 21,272.76, 31,928.82 and 10,750.19

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Solution

The fourth proportional to 21,272.76, 31,928.82 and 10,750.19 is: 16,135.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,272.76 : 31,928.82 = 10,750.19 : x
  2. Step 2: Convert to fraction form
    21,272.76/31,928.82 = 10,750.19/x
  3. Step 3: Cross multiply
    21,272.76x = 31,928.82 × 10,750.19
  4. Step 4: Simplify right side
    21,272.76x = 343,240,681.52
  5. Step 5: Solve for x
    x = 343,240,681.52/21,272.76
  6. Step 6: Final answer
    x = 16,135.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.