Home / 27,117.97-37,396.51-21,147.46

Finding the Fourth Proportional to 27,117.97, 37,396.51 and 21,147.46

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Solution

The fourth proportional to 27,117.97, 37,396.51 and 21,147.46 is: 29,162.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,117.97 : 37,396.51 = 21,147.46 : x
  2. Step 2: Convert to fraction form
    27,117.97/37,396.51 = 21,147.46/x
  3. Step 3: Cross multiply
    27,117.97x = 37,396.51 × 21,147.46
  4. Step 4: Simplify right side
    27,117.97x = 790,841,053.00
  5. Step 5: Solve for x
    x = 790,841,053.00/27,117.97
  6. Step 6: Final answer
    x = 29,162.99

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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.