Home / 20,499.63-30,748.90-5,707.95

Finding the Fourth Proportional to 20,499.63, 30,748.90 and 5,707.95

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Solution

The fourth proportional to 20,499.63, 30,748.90 and 5,707.95 is: 8,561.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,499.63 : 30,748.90 = 5,707.95 : x
  2. Step 2: Convert to fraction form
    20,499.63/30,748.90 = 5,707.95/x
  3. Step 3: Cross multiply
    20,499.63x = 30,748.90 × 5,707.95
  4. Step 4: Simplify right side
    20,499.63x = 175,513,183.76
  5. Step 5: Solve for x
    x = 175,513,183.76/20,499.63
  6. Step 6: Final answer
    x = 8,561.77

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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.