Home / 36,279.63-54,419.72-9,985.82

Finding the Fourth Proportional to 36,279.63, 54,419.72 and 9,985.82

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Solution

The fourth proportional to 36,279.63, 54,419.72 and 9,985.82 is: 14,978.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,279.63 : 54,419.72 = 9,985.82 : x
  2. Step 2: Convert to fraction form
    36,279.63/54,419.72 = 9,985.82/x
  3. Step 3: Cross multiply
    36,279.63x = 54,419.72 × 9,985.82
  4. Step 4: Simplify right side
    36,279.63x = 543,425,206.34
  5. Step 5: Solve for x
    x = 543,425,206.34/36,279.63
  6. Step 6: Final answer
    x = 14,978.80

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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.