Home / 19,681.91-27,160.67-10,729.47

Finding the Fourth Proportional to 19,681.91, 27,160.67 and 10,729.47

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Solution

The fourth proportional to 19,681.91, 27,160.67 and 10,729.47 is: 14,806.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,681.91 : 27,160.67 = 10,729.47 : x
  2. Step 2: Convert to fraction form
    19,681.91/27,160.67 = 10,729.47/x
  3. Step 3: Cross multiply
    19,681.91x = 27,160.67 × 10,729.47
  4. Step 4: Simplify right side
    19,681.91x = 291,419,540.30
  5. Step 5: Solve for x
    x = 291,419,540.30/19,681.91
  6. Step 6: Final answer
    x = 14,806.47

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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.