Home / 13,582.45-20,373.69-3,721.81

Finding the Fourth Proportional to 13,582.45, 20,373.69 and 3,721.81

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Solution

The fourth proportional to 13,582.45, 20,373.69 and 3,721.81 is: 5,582.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,582.45 : 20,373.69 = 3,721.81 : x
  2. Step 2: Convert to fraction form
    13,582.45/20,373.69 = 3,721.81/x
  3. Step 3: Cross multiply
    13,582.45x = 20,373.69 × 3,721.81
  4. Step 4: Simplify right side
    13,582.45x = 75,827,003.18
  5. Step 5: Solve for x
    x = 75,827,003.18/13,582.45
  6. Step 6: Final answer
    x = 5,582.72

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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.