Home / 19,699.68-27,195.57-15,213.36

Finding the Fourth Proportional to 19,699.68, 27,195.57 and 15,213.36

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Solution

The fourth proportional to 19,699.68, 27,195.57 and 15,213.36 is: 21,002.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,699.68 : 27,195.57 = 15,213.36 : x
  2. Step 2: Convert to fraction form
    19,699.68/27,195.57 = 15,213.36/x
  3. Step 3: Cross multiply
    19,699.68x = 27,195.57 × 15,213.36
  4. Step 4: Simplify right side
    19,699.68x = 413,735,996.82
  5. Step 5: Solve for x
    x = 413,735,996.82/19,699.68
  6. Step 6: Final answer
    x = 21,002.17

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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.