Home / 28,292.66-42,378.25-26,636.52

Finding the Fourth Proportional to 28,292.66, 42,378.25 and 26,636.52

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Solution

The fourth proportional to 28,292.66, 42,378.25 and 26,636.52 is: 39,897.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,292.66 : 42,378.25 = 26,636.52 : x
  2. Step 2: Convert to fraction form
    28,292.66/42,378.25 = 26,636.52/x
  3. Step 3: Cross multiply
    28,292.66x = 42,378.25 × 26,636.52
  4. Step 4: Simplify right side
    28,292.66x = 1,128,809,103.69
  5. Step 5: Solve for x
    x = 1,128,809,103.69/28,292.66
  6. Step 6: Final answer
    x = 39,897.60

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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.