Home / 20,319.86-30,476.76-5,529.68

Finding the Fourth Proportional to 20,319.86, 30,476.76 and 5,529.68

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Solution

The fourth proportional to 20,319.86, 30,476.76 and 5,529.68 is: 8,293.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,319.86 : 30,476.76 = 5,529.68 : x
  2. Step 2: Convert to fraction form
    20,319.86/30,476.76 = 5,529.68/x
  3. Step 3: Cross multiply
    20,319.86x = 30,476.76 × 5,529.68
  4. Step 4: Simplify right side
    20,319.86x = 168,526,730.24
  5. Step 5: Solve for x
    x = 168,526,730.24/20,319.86
  6. Step 6: Final answer
    x = 8,293.70

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1.5x scale

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.