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Finding the Fourth Proportional to 18,003.35, 27,005.03 and 14,918.87

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Solution

The fourth proportional to 18,003.35, 27,005.03 and 14,918.87 is: 22,378.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,003.35 : 27,005.03 = 14,918.87 : x
  2. Step 2: Convert to fraction form
    18,003.35/27,005.03 = 14,918.87/x
  3. Step 3: Cross multiply
    18,003.35x = 27,005.03 × 14,918.87
  4. Step 4: Simplify right side
    18,003.35x = 402,884,322.30
  5. Step 5: Solve for x
    x = 402,884,322.30/18,003.35
  6. Step 6: Final answer
    x = 22,378.30

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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.