Home / 28,622.89-39,497.61-15,874.87

Finding the Fourth Proportional to 28,622.89, 39,497.61 and 15,874.87

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Solution

The fourth proportional to 28,622.89, 39,497.61 and 15,874.87 is: 21,906.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,622.89 : 39,497.61 = 15,874.87 : x
  2. Step 2: Convert to fraction form
    28,622.89/39,497.61 = 15,874.87/x
  3. Step 3: Cross multiply
    28,622.89x = 39,497.61 × 15,874.87
  4. Step 4: Simplify right side
    28,622.89x = 627,019,424.06
  5. Step 5: Solve for x
    x = 627,019,424.06/28,622.89
  6. Step 6: Final answer
    x = 21,906.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.