Home / 28,929.84-43,375.68-19,039.20

Finding the Fourth Proportional to 28,929.84, 43,375.68 and 19,039.20

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Solution

The fourth proportional to 28,929.84, 43,375.68 and 19,039.20 is: 28,546.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,929.84 : 43,375.68 = 19,039.20 : x
  2. Step 2: Convert to fraction form
    28,929.84/43,375.68 = 19,039.20/x
  3. Step 3: Cross multiply
    28,929.84x = 43,375.68 × 19,039.20
  4. Step 4: Simplify right side
    28,929.84x = 825,838,246.66
  5. Step 5: Solve for x
    x = 825,838,246.66/28,929.84
  6. Step 6: Final answer
    x = 28,546.24

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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.