Home / 27,721.14-38,267.76-17,663.38

Finding the Fourth Proportional to 27,721.14, 38,267.76 and 17,663.38

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Solution

The fourth proportional to 27,721.14, 38,267.76 and 17,663.38 is: 24,383.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,721.14 : 38,267.76 = 17,663.38 : x
  2. Step 2: Convert to fraction form
    27,721.14/38,267.76 = 17,663.38/x
  3. Step 3: Cross multiply
    27,721.14x = 38,267.76 × 17,663.38
  4. Step 4: Simplify right side
    27,721.14x = 675,937,986.63
  5. Step 5: Solve for x
    x = 675,937,986.63/27,721.14
  6. Step 6: Final answer
    x = 24,383.48

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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.