Home / 28,479.32-42,757.88-19,125.44

Finding the Fourth Proportional to 28,479.32, 42,757.88 and 19,125.44

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Solution

The fourth proportional to 28,479.32, 42,757.88 and 19,125.44 is: 28,714.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,479.32 : 42,757.88 = 19,125.44 : x
  2. Step 2: Convert to fraction form
    28,479.32/42,757.88 = 19,125.44/x
  3. Step 3: Cross multiply
    28,479.32x = 42,757.88 × 19,125.44
  4. Step 4: Simplify right side
    28,479.32x = 817,763,268.47
  5. Step 5: Solve for x
    x = 817,763,268.47/28,479.32
  6. Step 6: Final answer
    x = 28,714.28

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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.