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Finding the Fourth Proportional to 18,600.21, 27,865.13 and 14,419.76

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Solution

The fourth proportional to 18,600.21, 27,865.13 and 14,419.76 is: 21,602.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,600.21 : 27,865.13 = 14,419.76 : x
  2. Step 2: Convert to fraction form
    18,600.21/27,865.13 = 14,419.76/x
  3. Step 3: Cross multiply
    18,600.21x = 27,865.13 × 14,419.76
  4. Step 4: Simplify right side
    18,600.21x = 401,808,275.54
  5. Step 5: Solve for x
    x = 401,808,275.54/18,600.21
  6. Step 6: Final answer
    x = 21,602.35

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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.