Home / 30,359.75-41,896.64-16,931.57

Finding the Fourth Proportional to 30,359.75, 41,896.64 and 16,931.57

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Solution

The fourth proportional to 30,359.75, 41,896.64 and 16,931.57 is: 23,365.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,359.75 : 41,896.64 = 16,931.57 : x
  2. Step 2: Convert to fraction form
    30,359.75/41,896.64 = 16,931.57/x
  3. Step 3: Cross multiply
    30,359.75x = 41,896.64 × 16,931.57
  4. Step 4: Simplify right side
    30,359.75x = 709,375,892.92
  5. Step 5: Solve for x
    x = 709,375,892.92/30,359.75
  6. Step 6: Final answer
    x = 23,365.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.