Home / 18,910.63-28,365.95-18,883.30

Finding the Fourth Proportional to 18,910.63, 28,365.95 and 18,883.30

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Solution

The fourth proportional to 18,910.63, 28,365.95 and 18,883.30 is: 28,324.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,910.63 : 28,365.95 = 18,883.30 : x
  2. Step 2: Convert to fraction form
    18,910.63/28,365.95 = 18,883.30/x
  3. Step 3: Cross multiply
    18,910.63x = 28,365.95 × 18,883.30
  4. Step 4: Simplify right side
    18,910.63x = 535,642,649.22
  5. Step 5: Solve for x
    x = 535,642,649.22/18,910.63
  6. Step 6: Final answer
    x = 28,324.95

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Similar ratio
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1.5x scale

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.