Home / 19,993.28-27,572.88-12,912.26

Finding the Fourth Proportional to 19,993.28, 27,572.88 and 12,912.26

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Solution

The fourth proportional to 19,993.28, 27,572.88 and 12,912.26 is: 17,807.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,993.28 : 27,572.88 = 12,912.26 : x
  2. Step 2: Convert to fraction form
    19,993.28/27,572.88 = 12,912.26/x
  3. Step 3: Cross multiply
    19,993.28x = 27,572.88 × 12,912.26
  4. Step 4: Simplify right side
    19,993.28x = 356,028,195.51
  5. Step 5: Solve for x
    x = 356,028,195.51/19,993.28
  6. Step 6: Final answer
    x = 17,807.39

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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.