Home / 19,076.33-28,609.29-7,981.22

Finding the Fourth Proportional to 19,076.33, 28,609.29 and 7,981.22

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Solution

The fourth proportional to 19,076.33, 28,609.29 and 7,981.22 is: 11,969.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,076.33 : 28,609.29 = 7,981.22 : x
  2. Step 2: Convert to fraction form
    19,076.33/28,609.29 = 7,981.22/x
  3. Step 3: Cross multiply
    19,076.33x = 28,609.29 × 7,981.22
  4. Step 4: Simplify right side
    19,076.33x = 228,337,037.53
  5. Step 5: Solve for x
    x = 228,337,037.53/19,076.33
  6. Step 6: Final answer
    x = 11,969.65

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1.5x scale

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.