Home / 19,620.84-27,078.30-11,237.52

Finding the Fourth Proportional to 19,620.84, 27,078.30 and 11,237.52

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Solution

The fourth proportional to 19,620.84, 27,078.30 and 11,237.52 is: 15,508.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,620.84 : 27,078.30 = 11,237.52 : x
  2. Step 2: Convert to fraction form
    19,620.84/27,078.30 = 11,237.52/x
  3. Step 3: Cross multiply
    19,620.84x = 27,078.30 × 11,237.52
  4. Step 4: Simplify right side
    19,620.84x = 304,292,937.82
  5. Step 5: Solve for x
    x = 304,292,937.82/19,620.84
  6. Step 6: Final answer
    x = 15,508.66

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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.