Home / 19,399.13-29,100.38-5,359.17

Finding the Fourth Proportional to 19,399.13, 29,100.38 and 5,359.17

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Solution

The fourth proportional to 19,399.13, 29,100.38 and 5,359.17 is: 8,039.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,399.13 : 29,100.38 = 5,359.17 : x
  2. Step 2: Convert to fraction form
    19,399.13/29,100.38 = 5,359.17/x
  3. Step 3: Cross multiply
    19,399.13x = 29,100.38 × 5,359.17
  4. Step 4: Simplify right side
    19,399.13x = 155,953,856.69
  5. Step 5: Solve for x
    x = 155,953,856.69/19,399.13
  6. Step 6: Final answer
    x = 8,039.22

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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.