Home / 20,893.96-31,339.43-9,803.17

Finding the Fourth Proportional to 20,893.96, 31,339.43 and 9,803.17

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Solution

The fourth proportional to 20,893.96, 31,339.43 and 9,803.17 is: 14,704.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,893.96 : 31,339.43 = 9,803.17 : x
  2. Step 2: Convert to fraction form
    20,893.96/31,339.43 = 9,803.17/x
  3. Step 3: Cross multiply
    20,893.96x = 31,339.43 × 9,803.17
  4. Step 4: Simplify right side
    20,893.96x = 307,225,759.99
  5. Step 5: Solve for x
    x = 307,225,759.99/20,893.96
  6. Step 6: Final answer
    x = 14,704.05

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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.