Home / 20,564.28-30,846.42-4,981.91

Finding the Fourth Proportional to 20,564.28, 30,846.42 and 4,981.91

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Solution

The fourth proportional to 20,564.28, 30,846.42 and 4,981.91 is: 7,472.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,564.28 : 30,846.42 = 4,981.91 : x
  2. Step 2: Convert to fraction form
    20,564.28/30,846.42 = 4,981.91/x
  3. Step 3: Cross multiply
    20,564.28x = 30,846.42 × 4,981.91
  4. Step 4: Simplify right side
    20,564.28x = 153,673,934.03
  5. Step 5: Solve for x
    x = 153,673,934.03/20,564.28
  6. Step 6: Final answer
    x = 7,472.86

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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.