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Finding the Fourth Proportional to 18,006.02, 27,009.22 and 17,980.10

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Solution

The fourth proportional to 18,006.02, 27,009.22 and 17,980.10 is: 26,970.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,006.02 : 27,009.22 = 17,980.10 : x
  2. Step 2: Convert to fraction form
    18,006.02/27,009.22 = 17,980.10/x
  3. Step 3: Cross multiply
    18,006.02x = 27,009.22 × 17,980.10
  4. Step 4: Simplify right side
    18,006.02x = 485,628,476.52
  5. Step 5: Solve for x
    x = 485,628,476.52/18,006.02
  6. Step 6: Final answer
    x = 26,970.34

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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.