Home / 21,860.90-32,791.37-6,278.52

Finding the Fourth Proportional to 21,860.90, 32,791.37 and 6,278.52

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Solution

The fourth proportional to 21,860.90, 32,791.37 and 6,278.52 is: 9,417.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,860.90 : 32,791.37 = 6,278.52 : x
  2. Step 2: Convert to fraction form
    21,860.90/32,791.37 = 6,278.52/x
  3. Step 3: Cross multiply
    21,860.90x = 32,791.37 × 6,278.52
  4. Step 4: Simplify right side
    21,860.90x = 205,881,240.98
  5. Step 5: Solve for x
    x = 205,881,240.98/21,860.90
  6. Step 6: Final answer
    x = 9,417.79

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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.