Home / 21,074.58-31,613.49-7,926.66

Finding the Fourth Proportional to 21,074.58, 31,613.49 and 7,926.66

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Solution

The fourth proportional to 21,074.58, 31,613.49 and 7,926.66 is: 11,890.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,074.58 : 31,613.49 = 7,926.66 : x
  2. Step 2: Convert to fraction form
    21,074.58/31,613.49 = 7,926.66/x
  3. Step 3: Cross multiply
    21,074.58x = 31,613.49 × 7,926.66
  4. Step 4: Simplify right side
    21,074.58x = 250,589,386.64
  5. Step 5: Solve for x
    x = 250,589,386.64/21,074.58
  6. Step 6: Final answer
    x = 11,890.60

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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.