Home / 27,995.04-38,633.15-15,419.79

Finding the Fourth Proportional to 27,995.04, 38,633.15 and 15,419.79

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Solution

The fourth proportional to 27,995.04, 38,633.15 and 15,419.79 is: 21,279.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,995.04 : 38,633.15 = 15,419.79 : x
  2. Step 2: Convert to fraction form
    27,995.04/38,633.15 = 15,419.79/x
  3. Step 3: Cross multiply
    27,995.04x = 38,633.15 × 15,419.79
  4. Step 4: Simplify right side
    27,995.04x = 595,715,243.46
  5. Step 5: Solve for x
    x = 595,715,243.46/27,995.04
  6. Step 6: Final answer
    x = 21,279.31

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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.