Home / 39,974.55-55,164.00-21,824.67

Finding the Fourth Proportional to 39,974.55, 55,164.00 and 21,824.67

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Solution

The fourth proportional to 39,974.55, 55,164.00 and 21,824.67 is: 30,117.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,974.55 : 55,164.00 = 21,824.67 : x
  2. Step 2: Convert to fraction form
    39,974.55/55,164.00 = 21,824.67/x
  3. Step 3: Cross multiply
    39,974.55x = 55,164.00 × 21,824.67
  4. Step 4: Simplify right side
    39,974.55x = 1,203,936,384.59
  5. Step 5: Solve for x
    x = 1,203,936,384.59/39,974.55
  6. Step 6: Final answer
    x = 30,117.57

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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.