Home / 22,195.83-30,631.16-12,764.39

Finding the Fourth Proportional to 22,195.83, 30,631.16 and 12,764.39

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Solution

The fourth proportional to 22,195.83, 30,631.16 and 12,764.39 is: 17,615.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,195.83 : 30,631.16 = 12,764.39 : x
  2. Step 2: Convert to fraction form
    22,195.83/30,631.16 = 12,764.39/x
  3. Step 3: Cross multiply
    22,195.83x = 30,631.16 × 12,764.39
  4. Step 4: Simplify right side
    22,195.83x = 390,988,085.15
  5. Step 5: Solve for x
    x = 390,988,085.15/22,195.83
  6. Step 6: Final answer
    x = 17,615.38

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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.