Home / 28,392.78-42,542.09-17,265.81

Finding the Fourth Proportional to 28,392.78, 42,542.09 and 17,265.81

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Solution

The fourth proportional to 28,392.78, 42,542.09 and 17,265.81 is: 25,870.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,392.78 : 42,542.09 = 17,265.81 : x
  2. Step 2: Convert to fraction form
    28,392.78/42,542.09 = 17,265.81/x
  3. Step 3: Cross multiply
    28,392.78x = 42,542.09 × 17,265.81
  4. Step 4: Simplify right side
    28,392.78x = 734,523,599.78
  5. Step 5: Solve for x
    x = 734,523,599.78/28,392.78
  6. Step 6: Final answer
    x = 25,870.08

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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.