Home / 20,148.87-30,223.32-7,666.02

Finding the Fourth Proportional to 20,148.87, 30,223.32 and 7,666.02

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Solution

The fourth proportional to 20,148.87, 30,223.32 and 7,666.02 is: 11,499.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,148.87 : 30,223.32 = 7,666.02 : x
  2. Step 2: Convert to fraction form
    20,148.87/30,223.32 = 7,666.02/x
  3. Step 3: Cross multiply
    20,148.87x = 30,223.32 × 7,666.02
  4. Step 4: Simplify right side
    20,148.87x = 231,692,575.59
  5. Step 5: Solve for x
    x = 231,692,575.59/20,148.87
  6. Step 6: Final answer
    x = 11,499.04

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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.