Home / 20,937.22-31,406.91-5,354.98

Finding the Fourth Proportional to 20,937.22, 31,406.91 and 5,354.98

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Solution

The fourth proportional to 20,937.22, 31,406.91 and 5,354.98 is: 8,032.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,937.22 : 31,406.91 = 5,354.98 : x
  2. Step 2: Convert to fraction form
    20,937.22/31,406.91 = 5,354.98/x
  3. Step 3: Cross multiply
    20,937.22x = 31,406.91 × 5,354.98
  4. Step 4: Simplify right side
    20,937.22x = 168,183,374.91
  5. Step 5: Solve for x
    x = 168,183,374.91/20,937.22
  6. Step 6: Final answer
    x = 8,032.75

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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.