Home / 27,796.76-38,359.16-15,221.52

Finding the Fourth Proportional to 27,796.76, 38,359.16 and 15,221.52

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Solution

The fourth proportional to 27,796.76, 38,359.16 and 15,221.52 is: 21,005.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,796.76 : 38,359.16 = 15,221.52 : x
  2. Step 2: Convert to fraction form
    27,796.76/38,359.16 = 15,221.52/x
  3. Step 3: Cross multiply
    27,796.76x = 38,359.16 × 15,221.52
  4. Step 4: Simplify right side
    27,796.76x = 583,884,721.12
  5. Step 5: Solve for x
    x = 583,884,721.12/27,796.76
  6. Step 6: Final answer
    x = 21,005.50

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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.