Home / 20,986.16-31,482.66-6,196.58

Finding the Fourth Proportional to 20,986.16, 31,482.66 and 6,196.58

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Solution

The fourth proportional to 20,986.16, 31,482.66 and 6,196.58 is: 9,295.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,986.16 : 31,482.66 = 6,196.58 : x
  2. Step 2: Convert to fraction form
    20,986.16/31,482.66 = 6,196.58/x
  3. Step 3: Cross multiply
    20,986.16x = 31,482.66 × 6,196.58
  4. Step 4: Simplify right side
    20,986.16x = 195,084,663.89
  5. Step 5: Solve for x
    x = 195,084,663.89/20,986.16
  6. Step 6: Final answer
    x = 9,295.87

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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.