Home / 36,478.86-54,720.72-11,519.93

Finding the Fourth Proportional to 36,478.86, 54,720.72 and 11,519.93

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Solution

The fourth proportional to 36,478.86, 54,720.72 and 11,519.93 is: 17,280.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,478.86 : 54,720.72 = 11,519.93 : x
  2. Step 2: Convert to fraction form
    36,478.86/54,720.72 = 11,519.93/x
  3. Step 3: Cross multiply
    36,478.86x = 54,720.72 × 11,519.93
  4. Step 4: Simplify right side
    36,478.86x = 630,378,590.35
  5. Step 5: Solve for x
    x = 630,378,590.35/36,478.86
  6. Step 6: Final answer
    x = 17,280.65

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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.