Home / 21,639.59-32,464.23-6,849.39

Finding the Fourth Proportional to 21,639.59, 32,464.23 and 6,849.39

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Solution

The fourth proportional to 21,639.59, 32,464.23 and 6,849.39 is: 10,275.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,639.59 : 32,464.23 = 6,849.39 : x
  2. Step 2: Convert to fraction form
    21,639.59/32,464.23 = 6,849.39/x
  3. Step 3: Cross multiply
    21,639.59x = 32,464.23 × 6,849.39
  4. Step 4: Simplify right side
    21,639.59x = 222,360,172.32
  5. Step 5: Solve for x
    x = 222,360,172.32/21,639.59
  6. Step 6: Final answer
    x = 10,275.62

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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.