Home / 21,550.76-32,256.86-11,530.49

Finding the Fourth Proportional to 21,550.76, 32,256.86 and 11,530.49

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Solution

The fourth proportional to 21,550.76, 32,256.86 and 11,530.49 is: 17,258.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,550.76 : 32,256.86 = 11,530.49 : x
  2. Step 2: Convert to fraction form
    21,550.76/32,256.86 = 11,530.49/x
  3. Step 3: Cross multiply
    21,550.76x = 32,256.86 × 11,530.49
  4. Step 4: Simplify right side
    21,550.76x = 371,937,182.72
  5. Step 5: Solve for x
    x = 371,937,182.72/21,550.76
  6. Step 6: Final answer
    x = 17,258.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.