Home / 36,478.86-54,742.89-14,289.45

Finding the Fourth Proportional to 36,478.86, 54,742.89 and 14,289.45

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Solution

The fourth proportional to 36,478.86, 54,742.89 and 14,289.45 is: 21,443.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,478.86 : 54,742.89 = 14,289.45 : x
  2. Step 2: Convert to fraction form
    36,478.86/54,742.89 = 14,289.45/x
  3. Step 3: Cross multiply
    36,478.86x = 54,742.89 × 14,289.45
  4. Step 4: Simplify right side
    36,478.86x = 782,245,789.51
  5. Step 5: Solve for x
    x = 782,245,789.51/36,478.86
  6. Step 6: Final answer
    x = 21,443.81

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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.