Home / 34,947.71-52,421.31-20,911.64

Finding the Fourth Proportional to 34,947.71, 52,421.31 and 20,911.64

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Solution

The fourth proportional to 34,947.71, 52,421.31 and 20,911.64 is: 31,367.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,947.71 : 52,421.31 = 20,911.64 : x
  2. Step 2: Convert to fraction form
    34,947.71/52,421.31 = 20,911.64/x
  3. Step 3: Cross multiply
    34,947.71x = 52,421.31 × 20,911.64
  4. Step 4: Simplify right side
    34,947.71x = 1,096,215,694.10
  5. Step 5: Solve for x
    x = 1,096,215,694.10/34,947.71
  6. Step 6: Final answer
    x = 31,367.32

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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.