Home / 20,296.75-28,009.35-11,344.63

Finding the Fourth Proportional to 20,296.75, 28,009.35 and 11,344.63

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Solution

The fourth proportional to 20,296.75, 28,009.35 and 11,344.63 is: 15,655.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,296.75 : 28,009.35 = 11,344.63 : x
  2. Step 2: Convert to fraction form
    20,296.75/28,009.35 = 11,344.63/x
  3. Step 3: Cross multiply
    20,296.75x = 28,009.35 × 11,344.63
  4. Step 4: Simplify right side
    20,296.75x = 317,755,712.29
  5. Step 5: Solve for x
    x = 317,755,712.29/20,296.75
  6. Step 6: Final answer
    x = 15,655.50

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Double scale
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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.