Home / 20,984.06-31,507.11-14,007.54

Finding the Fourth Proportional to 20,984.06, 31,507.11 and 14,007.54

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Solution

The fourth proportional to 20,984.06, 31,507.11 and 14,007.54 is: 21,032.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,984.06 : 31,507.11 = 14,007.54 : x
  2. Step 2: Convert to fraction form
    20,984.06/31,507.11 = 14,007.54/x
  3. Step 3: Cross multiply
    20,984.06x = 31,507.11 × 14,007.54
  4. Step 4: Simplify right side
    20,984.06x = 441,337,103.61
  5. Step 5: Solve for x
    x = 441,337,103.61/20,984.06
  6. Step 6: Final answer
    x = 21,032.02

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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.