Home / 28,639.71-42,933.65-10,167.39

Finding the Fourth Proportional to 28,639.71, 42,933.65 and 10,167.39

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Solution

The fourth proportional to 28,639.71, 42,933.65 and 10,167.39 is: 15,241.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,639.71 : 42,933.65 = 10,167.39 : x
  2. Step 2: Convert to fraction form
    28,639.71/42,933.65 = 10,167.39/x
  3. Step 3: Cross multiply
    28,639.71x = 42,933.65 × 10,167.39
  4. Step 4: Simplify right side
    28,639.71x = 436,523,112.84
  5. Step 5: Solve for x
    x = 436,523,112.84/28,639.71
  6. Step 6: Final answer
    x = 15,241.88

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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.