Home / 20,980.48-31,476.13-7,832.96

Finding the Fourth Proportional to 20,980.48, 31,476.13 and 7,832.96

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Solution

The fourth proportional to 20,980.48, 31,476.13 and 7,832.96 is: 11,751.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,980.48 : 31,476.13 = 7,832.96 : x
  2. Step 2: Convert to fraction form
    20,980.48/31,476.13 = 7,832.96/x
  3. Step 3: Cross multiply
    20,980.48x = 31,476.13 × 7,832.96
  4. Step 4: Simplify right side
    20,980.48x = 246,551,267.24
  5. Step 5: Solve for x
    x = 246,551,267.24/20,980.48
  6. Step 6: Final answer
    x = 11,751.46

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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.