Home / 22,059.79-30,439.28-13,107.67

Finding the Fourth Proportional to 22,059.79, 30,439.28 and 13,107.67

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Solution

The fourth proportional to 22,059.79, 30,439.28 and 13,107.67 is: 18,086.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,059.79 : 30,439.28 = 13,107.67 : x
  2. Step 2: Convert to fraction form
    22,059.79/30,439.28 = 13,107.67/x
  3. Step 3: Cross multiply
    22,059.79x = 30,439.28 × 13,107.67
  4. Step 4: Simplify right side
    22,059.79x = 398,987,971.74
  5. Step 5: Solve for x
    x = 398,987,971.74/22,059.79
  6. Step 6: Final answer
    x = 18,086.66

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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.