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Finding the Fourth Proportional to 18,649.95, 28,077.02 and 17,016.99

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Solution

The fourth proportional to 18,649.95, 28,077.02 and 17,016.99 is: 25,618.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,649.95 : 28,077.02 = 17,016.99 : x
  2. Step 2: Convert to fraction form
    18,649.95/28,077.02 = 17,016.99/x
  3. Step 3: Cross multiply
    18,649.95x = 28,077.02 × 17,016.99
  4. Step 4: Simplify right side
    18,649.95x = 477,786,283.48
  5. Step 5: Solve for x
    x = 477,786,283.48/18,649.95
  6. Step 6: Final answer
    x = 25,618.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.