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Finding the Fourth Proportional to 17,275.70, 23,841 and 9,721.86

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Solution

The fourth proportional to 17,275.70, 23,841 and 9,721.86 is: 13,416.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,275.70 : 23,841 = 9,721.86 : x
  2. Step 2: Convert to fraction form
    17,275.70/23,841 = 9,721.86/x
  3. Step 3: Cross multiply
    17,275.70x = 23,841 × 9,721.86
  4. Step 4: Simplify right side
    17,275.70x = 231,778,864.26
  5. Step 5: Solve for x
    x = 231,778,864.26/17,275.70
  6. Step 6: Final answer
    x = 13,416.47

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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.