Home / 19,622.88-27,078.48-11,239.92

Finding the Fourth Proportional to 19,622.88, 27,078.48 and 11,239.92

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Solution

The fourth proportional to 19,622.88, 27,078.48 and 11,239.92 is: 15,510.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,622.88 : 27,078.48 = 11,239.92 : x
  2. Step 2: Convert to fraction form
    19,622.88/27,078.48 = 11,239.92/x
  3. Step 3: Cross multiply
    19,622.88x = 27,078.48 × 11,239.92
  4. Step 4: Simplify right side
    19,622.88x = 304,359,948.92
  5. Step 5: Solve for x
    x = 304,359,948.92/19,622.88
  6. Step 6: Final answer
    x = 15,510.46

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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.