Home / 20,887.12-31,329.22-9,796.24

Finding the Fourth Proportional to 20,887.12, 31,329.22 and 9,796.24

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Solution

The fourth proportional to 20,887.12, 31,329.22 and 9,796.24 is: 14,693.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,887.12 : 31,329.22 = 9,796.24 : x
  2. Step 2: Convert to fraction form
    20,887.12/31,329.22 = 9,796.24/x
  3. Step 3: Cross multiply
    20,887.12x = 31,329.22 × 9,796.24
  4. Step 4: Simplify right side
    20,887.12x = 306,908,558.13
  5. Step 5: Solve for x
    x = 306,908,558.13/20,887.12
  6. Step 6: Final answer
    x = 14,693.68

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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.