Home / 20,505.55-30,758.32-4,923.17

Finding the Fourth Proportional to 20,505.55, 30,758.32 and 4,923.17

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Solution

The fourth proportional to 20,505.55, 30,758.32 and 4,923.17 is: 7,384.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,505.55 : 30,758.32 = 4,923.17 : x
  2. Step 2: Convert to fraction form
    20,505.55/30,758.32 = 4,923.17/x
  3. Step 3: Cross multiply
    20,505.55x = 30,758.32 × 4,923.17
  4. Step 4: Simplify right side
    20,505.55x = 151,428,438.27
  5. Step 5: Solve for x
    x = 151,428,438.27/20,505.55
  6. Step 6: Final answer
    x = 7,384.75

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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.