Home / 19,639.24-29,450.76-7,949.32

Finding the Fourth Proportional to 19,639.24, 29,450.76 and 7,949.32

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Solution

The fourth proportional to 19,639.24, 29,450.76 and 7,949.32 is: 11,920.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,639.24 : 29,450.76 = 7,949.32 : x
  2. Step 2: Convert to fraction form
    19,639.24/29,450.76 = 7,949.32/x
  3. Step 3: Cross multiply
    19,639.24x = 29,450.76 × 7,949.32
  4. Step 4: Simplify right side
    19,639.24x = 234,113,515.48
  5. Step 5: Solve for x
    x = 234,113,515.48/19,639.24
  6. Step 6: Final answer
    x = 11,920.70

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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.