Home / 28,976.36-43,479.12-21,595.64

Finding the Fourth Proportional to 28,976.36, 43,479.12 and 21,595.64

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Solution

The fourth proportional to 28,976.36, 43,479.12 and 21,595.64 is: 32,404.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,976.36 : 43,479.12 = 21,595.64 : x
  2. Step 2: Convert to fraction form
    28,976.36/43,479.12 = 21,595.64/x
  3. Step 3: Cross multiply
    28,976.36x = 43,479.12 × 21,595.64
  4. Step 4: Simplify right side
    28,976.36x = 938,959,423.04
  5. Step 5: Solve for x
    x = 938,959,423.04/28,976.36
  6. Step 6: Final answer
    x = 32,404.33

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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.