Home / 17,955.20-24,779.24-9,997.20

Finding the Fourth Proportional to 17,955.20, 24,779.24 and 9,997.20

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Solution

The fourth proportional to 17,955.20, 24,779.24 and 9,997.20 is: 13,796.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,955.20 : 24,779.24 = 9,997.20 : x
  2. Step 2: Convert to fraction form
    17,955.20/24,779.24 = 9,997.20/x
  3. Step 3: Cross multiply
    17,955.20x = 24,779.24 × 9,997.20
  4. Step 4: Simplify right side
    17,955.20x = 247,723,018.13
  5. Step 5: Solve for x
    x = 247,723,018.13/17,955.20
  6. Step 6: Final answer
    x = 13,796.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.