Home / 21,086.13-31,634.67-6,295.05

Finding the Fourth Proportional to 21,086.13, 31,634.67 and 6,295.05

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Solution

The fourth proportional to 21,086.13, 31,634.67 and 6,295.05 is: 9,444.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,086.13 : 31,634.67 = 6,295.05 : x
  2. Step 2: Convert to fraction form
    21,086.13/31,634.67 = 6,295.05/x
  3. Step 3: Cross multiply
    21,086.13x = 31,634.67 × 6,295.05
  4. Step 4: Simplify right side
    21,086.13x = 199,141,829.38
  5. Step 5: Solve for x
    x = 199,141,829.38/21,086.13
  6. Step 6: Final answer
    x = 9,444.21

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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.