Home / 21,214.23-31,825.45-8,065.58

Finding the Fourth Proportional to 21,214.23, 31,825.45 and 8,065.58

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Solution

The fourth proportional to 21,214.23, 31,825.45 and 8,065.58 is: 12,099.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,214.23 : 31,825.45 = 8,065.58 : x
  2. Step 2: Convert to fraction form
    21,214.23/31,825.45 = 8,065.58/x
  3. Step 3: Cross multiply
    21,214.23x = 31,825.45 × 8,065.58
  4. Step 4: Simplify right side
    21,214.23x = 256,690,713.01
  5. Step 5: Solve for x
    x = 256,690,713.01/21,214.23
  6. Step 6: Final answer
    x = 12,099.93

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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.