Home / 27,799.31-38,360.98-15,699.06

Finding the Fourth Proportional to 27,799.31, 38,360.98 and 15,699.06

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Solution

The fourth proportional to 27,799.31, 38,360.98 and 15,699.06 is: 21,663.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,799.31 : 38,360.98 = 15,699.06 : x
  2. Step 2: Convert to fraction form
    27,799.31/38,360.98 = 15,699.06/x
  3. Step 3: Cross multiply
    27,799.31x = 38,360.98 × 15,699.06
  4. Step 4: Simplify right side
    27,799.31x = 602,231,326.68
  5. Step 5: Solve for x
    x = 602,231,326.68/27,799.31
  6. Step 6: Final answer
    x = 21,663.54

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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.