Home / 19,918.71-27,490.32-11,422.22

Finding the Fourth Proportional to 19,918.71, 27,490.32 and 11,422.22

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Solution

The fourth proportional to 19,918.71, 27,490.32 and 11,422.22 is: 15,764.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,918.71 : 27,490.32 = 11,422.22 : x
  2. Step 2: Convert to fraction form
    19,918.71/27,490.32 = 11,422.22/x
  3. Step 3: Cross multiply
    19,918.71x = 27,490.32 × 11,422.22
  4. Step 4: Simplify right side
    19,918.71x = 314,000,345.46
  5. Step 5: Solve for x
    x = 314,000,345.46/19,918.71
  6. Step 6: Final answer
    x = 15,764.09

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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.