Home / 36,115.17-54,159.44-12,415.98

Finding the Fourth Proportional to 36,115.17, 54,159.44 and 12,415.98

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Solution

The fourth proportional to 36,115.17, 54,159.44 and 12,415.98 is: 18,619.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,115.17 : 54,159.44 = 12,415.98 : x
  2. Step 2: Convert to fraction form
    36,115.17/54,159.44 = 12,415.98/x
  3. Step 3: Cross multiply
    36,115.17x = 54,159.44 × 12,415.98
  4. Step 4: Simplify right side
    36,115.17x = 672,442,664.87
  5. Step 5: Solve for x
    x = 672,442,664.87/36,115.17
  6. Step 6: Final answer
    x = 18,619.40

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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.