Home / 43,147.81-64,708.89-19,441.68

Finding the Fourth Proportional to 43,147.81, 64,708.89 and 19,441.68

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Solution

The fourth proportional to 43,147.81, 64,708.89 and 19,441.68 is: 29,156.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,147.81 : 64,708.89 = 19,441.68 : x
  2. Step 2: Convert to fraction form
    43,147.81/64,708.89 = 19,441.68/x
  3. Step 3: Cross multiply
    43,147.81x = 64,708.89 × 19,441.68
  4. Step 4: Simplify right side
    43,147.81x = 1,258,049,532.54
  5. Step 5: Solve for x
    x = 1,258,049,532.54/43,147.81
  6. Step 6: Final answer
    x = 29,156.74

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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.