Home / 20,962.83-31,444.27-5,380.46

Finding the Fourth Proportional to 20,962.83, 31,444.27 and 5,380.46

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Solution

The fourth proportional to 20,962.83, 31,444.27 and 5,380.46 is: 8,070.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,962.83 : 31,444.27 = 5,380.46 : x
  2. Step 2: Convert to fraction form
    20,962.83/31,444.27 = 5,380.46/x
  3. Step 3: Cross multiply
    20,962.83x = 31,444.27 × 5,380.46
  4. Step 4: Simplify right side
    20,962.83x = 169,184,466.29
  5. Step 5: Solve for x
    x = 169,184,466.29/20,962.83
  6. Step 6: Final answer
    x = 8,070.69

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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.