Home / 20,580.07-30,869.88-4,997.71

Finding the Fourth Proportional to 20,580.07, 30,869.88 and 4,997.71

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Solution

The fourth proportional to 20,580.07, 30,869.88 and 4,997.71 is: 7,496.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,580.07 : 30,869.88 = 4,997.71 : x
  2. Step 2: Convert to fraction form
    20,580.07/30,869.88 = 4,997.71/x
  3. Step 3: Cross multiply
    20,580.07x = 30,869.88 × 4,997.71
  4. Step 4: Simplify right side
    20,580.07x = 154,278,707.97
  5. Step 5: Solve for x
    x = 154,278,707.97/20,580.07
  6. Step 6: Final answer
    x = 7,496.51

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1.5x scale

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.