Home / 21,177.17-31,763.52-8,698.51

Finding the Fourth Proportional to 21,177.17, 31,763.52 and 8,698.51

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Solution

The fourth proportional to 21,177.17, 31,763.52 and 8,698.51 is: 13,046.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,177.17 : 31,763.52 = 8,698.51 : x
  2. Step 2: Convert to fraction form
    21,177.17/31,763.52 = 8,698.51/x
  3. Step 3: Cross multiply
    21,177.17x = 31,763.52 × 8,698.51
  4. Step 4: Simplify right side
    21,177.17x = 276,295,216.95
  5. Step 5: Solve for x
    x = 276,295,216.95/21,177.17
  6. Step 6: Final answer
    x = 13,046.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.