Home / 26,609.28-39,922.56-12,756.48

Finding the Fourth Proportional to 26,609.28, 39,922.56 and 12,756.48

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Solution

The fourth proportional to 26,609.28, 39,922.56 and 12,756.48 is: 19,138.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,609.28 : 39,922.56 = 12,756.48 : x
  2. Step 2: Convert to fraction form
    26,609.28/39,922.56 = 12,756.48/x
  3. Step 3: Cross multiply
    26,609.28x = 39,922.56 × 12,756.48
  4. Step 4: Simplify right side
    26,609.28x = 509,271,338.19
  5. Step 5: Solve for x
    x = 509,271,338.19/26,609.28
  6. Step 6: Final answer
    x = 19,138.86

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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.