Home / 20,433.76-30,633.93-10,575.86

Finding the Fourth Proportional to 20,433.76, 30,633.93 and 10,575.86

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Solution

The fourth proportional to 20,433.76, 30,633.93 and 10,575.86 is: 15,855.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,433.76 : 30,633.93 = 10,575.86 : x
  2. Step 2: Convert to fraction form
    20,433.76/30,633.93 = 10,575.86/x
  3. Step 3: Cross multiply
    20,433.76x = 30,633.93 × 10,575.86
  4. Step 4: Simplify right side
    20,433.76x = 323,980,001.76
  5. Step 5: Solve for x
    x = 323,980,001.76/20,433.76
  6. Step 6: Final answer
    x = 15,855.14

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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.