Home / 20,004.57-30,006.84-5,213.45

Finding the Fourth Proportional to 20,004.57, 30,006.84 and 5,213.45

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Solution

The fourth proportional to 20,004.57, 30,006.84 and 5,213.45 is: 7,820.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,004.57 : 30,006.84 = 5,213.45 : x
  2. Step 2: Convert to fraction form
    20,004.57/30,006.84 = 5,213.45/x
  3. Step 3: Cross multiply
    20,004.57x = 30,006.84 × 5,213.45
  4. Step 4: Simplify right side
    20,004.57x = 156,439,160.00
  5. Step 5: Solve for x
    x = 156,439,160.00/20,004.57
  6. Step 6: Final answer
    x = 7,820.17

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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.