Home / 28,264.76-42,390.05-11,629.38

Finding the Fourth Proportional to 28,264.76, 42,390.05 and 11,629.38

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Solution

The fourth proportional to 28,264.76, 42,390.05 and 11,629.38 is: 17,441.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,264.76 : 42,390.05 = 11,629.38 : x
  2. Step 2: Convert to fraction form
    28,264.76/42,390.05 = 11,629.38/x
  3. Step 3: Cross multiply
    28,264.76x = 42,390.05 × 11,629.38
  4. Step 4: Simplify right side
    28,264.76x = 492,969,941.52
  5. Step 5: Solve for x
    x = 492,969,941.52/28,264.76
  6. Step 6: Final answer
    x = 17,441.15

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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.