Home / 20,482.32-28,256.46-16,721.02

Finding the Fourth Proportional to 20,482.32, 28,256.46 and 16,721.02

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Solution

The fourth proportional to 20,482.32, 28,256.46 and 16,721.02 is: 23,067.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,482.32 : 28,256.46 = 16,721.02 : x
  2. Step 2: Convert to fraction form
    20,482.32/28,256.46 = 16,721.02/x
  3. Step 3: Cross multiply
    20,482.32x = 28,256.46 × 16,721.02
  4. Step 4: Simplify right side
    20,482.32x = 472,476,832.79
  5. Step 5: Solve for x
    x = 472,476,832.79/20,482.32
  6. Step 6: Final answer
    x = 23,067.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.