Home / 28,282-42,124.26-26,801.68

Finding the Fourth Proportional to 28,282, 42,124.26 and 26,801.68

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Solution

The fourth proportional to 28,282, 42,124.26 and 26,801.68 is: 39,919.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,282 : 42,124.26 = 26,801.68 : x
  2. Step 2: Convert to fraction form
    28,282/42,124.26 = 26,801.68/x
  3. Step 3: Cross multiply
    28,282x = 42,124.26 × 26,801.68
  4. Step 4: Simplify right side
    28,282x = 1,129,000,936.76
  5. Step 5: Solve for x
    x = 1,129,000,936.76/28,282
  6. Step 6: Final answer
    x = 39,919.42

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.