Home / 43,007.81-64,509.42-13,422.26

Finding the Fourth Proportional to 43,007.81, 64,509.42 and 13,422.26

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Solution

The fourth proportional to 43,007.81, 64,509.42 and 13,422.26 is: 20,132.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,007.81 : 64,509.42 = 13,422.26 : x
  2. Step 2: Convert to fraction form
    43,007.81/64,509.42 = 13,422.26/x
  3. Step 3: Cross multiply
    43,007.81x = 64,509.42 × 13,422.26
  4. Step 4: Simplify right side
    43,007.81x = 865,861,885.14
  5. Step 5: Solve for x
    x = 865,861,885.14/43,007.81
  6. Step 6: Final answer
    x = 20,132.67

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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.