Home / 19,723.10-27,220.44-13,022.78

Finding the Fourth Proportional to 19,723.10, 27,220.44 and 13,022.78

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Solution

The fourth proportional to 19,723.10, 27,220.44 and 13,022.78 is: 17,973.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,723.10 : 27,220.44 = 13,022.78 : x
  2. Step 2: Convert to fraction form
    19,723.10/27,220.44 = 13,022.78/x
  3. Step 3: Cross multiply
    19,723.10x = 27,220.44 × 13,022.78
  4. Step 4: Simplify right side
    19,723.10x = 354,485,801.62
  5. Step 5: Solve for x
    x = 354,485,801.62/19,723.10
  6. Step 6: Final answer
    x = 17,973.13

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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.