Home / 21,044.90-31,566.10-7,896.17

Finding the Fourth Proportional to 21,044.90, 31,566.10 and 7,896.17

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Solution

The fourth proportional to 21,044.90, 31,566.10 and 7,896.17 is: 11,843.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,044.90 : 31,566.10 = 7,896.17 : x
  2. Step 2: Convert to fraction form
    21,044.90/31,566.10 = 7,896.17/x
  3. Step 3: Cross multiply
    21,044.90x = 31,566.10 × 7,896.17
  4. Step 4: Simplify right side
    21,044.90x = 249,251,291.84
  5. Step 5: Solve for x
    x = 249,251,291.84/21,044.90
  6. Step 6: Final answer
    x = 11,843.79

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1.5x scale

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.