Home / 21,249.24-31,877.50-6,459.64

Finding the Fourth Proportional to 21,249.24, 31,877.50 and 6,459.64

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Solution

The fourth proportional to 21,249.24, 31,877.50 and 6,459.64 is: 9,690.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,249.24 : 31,877.50 = 6,459.64 : x
  2. Step 2: Convert to fraction form
    21,249.24/31,877.50 = 6,459.64/x
  3. Step 3: Cross multiply
    21,249.24x = 31,877.50 × 6,459.64
  4. Step 4: Simplify right side
    21,249.24x = 205,917,174.10
  5. Step 5: Solve for x
    x = 205,917,174.10/21,249.24
  6. Step 6: Final answer
    x = 9,690.57

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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.