Home / 21,830.41-32,696.38-15,285.81

Finding the Fourth Proportional to 21,830.41, 32,696.38 and 15,285.81

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Solution

The fourth proportional to 21,830.41, 32,696.38 and 15,285.81 is: 22,894.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,830.41 : 32,696.38 = 15,285.81 : x
  2. Step 2: Convert to fraction form
    21,830.41/32,696.38 = 15,285.81/x
  3. Step 3: Cross multiply
    21,830.41x = 32,696.38 × 15,285.81
  4. Step 4: Simplify right side
    21,830.41x = 499,790,772.32
  5. Step 5: Solve for x
    x = 499,790,772.32/21,830.41
  6. Step 6: Final answer
    x = 22,894.25

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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.