Home / 19,729.13-27,227.01-11,345.63

Finding the Fourth Proportional to 19,729.13, 27,227.01 and 11,345.63

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Solution

The fourth proportional to 19,729.13, 27,227.01 and 11,345.63 is: 15,657.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,729.13 : 27,227.01 = 11,345.63 : x
  2. Step 2: Convert to fraction form
    19,729.13/27,227.01 = 11,345.63/x
  3. Step 3: Cross multiply
    19,729.13x = 27,227.01 × 11,345.63
  4. Step 4: Simplify right side
    19,729.13x = 308,907,445.33
  5. Step 5: Solve for x
    x = 308,907,445.33/19,729.13
  6. Step 6: Final answer
    x = 15,657.43

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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.