Home / 18,411.36-27,642.96-17,575.44

Finding the Fourth Proportional to 18,411.36, 27,642.96 and 17,575.44

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Solution

The fourth proportional to 18,411.36, 27,642.96 and 17,575.44 is: 26,387.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,411.36 : 27,642.96 = 17,575.44 : x
  2. Step 2: Convert to fraction form
    18,411.36/27,642.96 = 17,575.44/x
  3. Step 3: Cross multiply
    18,411.36x = 27,642.96 × 17,575.44
  4. Step 4: Simplify right side
    18,411.36x = 485,837,184.90
  5. Step 5: Solve for x
    x = 485,837,184.90/18,411.36
  6. Step 6: Final answer
    x = 26,387.90

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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.