Home / 21,382.65-32,074.52-10,135.35

Finding the Fourth Proportional to 21,382.65, 32,074.52 and 10,135.35

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Solution

The fourth proportional to 21,382.65, 32,074.52 and 10,135.35 is: 15,203.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,382.65 : 32,074.52 = 10,135.35 : x
  2. Step 2: Convert to fraction form
    21,382.65/32,074.52 = 10,135.35/x
  3. Step 3: Cross multiply
    21,382.65x = 32,074.52 × 10,135.35
  4. Step 4: Simplify right side
    21,382.65x = 325,086,435.61
  5. Step 5: Solve for x
    x = 325,086,435.61/21,382.65
  6. Step 6: Final answer
    x = 15,203.28

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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.