Home / 21,086.16-31,630.74-6,293.88

Finding the Fourth Proportional to 21,086.16, 31,630.74 and 6,293.88

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Solution

The fourth proportional to 21,086.16, 31,630.74 and 6,293.88 is: 9,441.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,086.16 : 31,630.74 = 6,293.88 : x
  2. Step 2: Convert to fraction form
    21,086.16/31,630.74 = 6,293.88/x
  3. Step 3: Cross multiply
    21,086.16x = 31,630.74 × 6,293.88
  4. Step 4: Simplify right side
    21,086.16x = 199,080,081.87
  5. Step 5: Solve for x
    x = 199,080,081.87/21,086.16
  6. Step 6: Final answer
    x = 9,441.27

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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.