Home / 28,435.17-42,634.51-11,806.68

Finding the Fourth Proportional to 28,435.17, 42,634.51 and 11,806.68

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Solution

The fourth proportional to 28,435.17, 42,634.51 and 11,806.68 is: 17,702.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,435.17 : 42,634.51 = 11,806.68 : x
  2. Step 2: Convert to fraction form
    28,435.17/42,634.51 = 11,806.68/x
  3. Step 3: Cross multiply
    28,435.17x = 42,634.51 × 11,806.68
  4. Step 4: Simplify right side
    28,435.17x = 503,371,987.01
  5. Step 5: Solve for x
    x = 503,371,987.01/28,435.17
  6. Step 6: Final answer
    x = 17,702.44

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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.