Home / 20,514.91-30,772.36-6,484.78

Finding the Fourth Proportional to 20,514.91, 30,772.36 and 6,484.78

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Solution

The fourth proportional to 20,514.91, 30,772.36 and 6,484.78 is: 9,727.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,514.91 : 30,772.36 = 6,484.78 : x
  2. Step 2: Convert to fraction form
    20,514.91/30,772.36 = 6,484.78/x
  3. Step 3: Cross multiply
    20,514.91x = 30,772.36 × 6,484.78
  4. Step 4: Simplify right side
    20,514.91x = 199,552,130.32
  5. Step 5: Solve for x
    x = 199,552,130.32/20,514.91
  6. Step 6: Final answer
    x = 9,727.18

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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.