Home / 21,249.23-31,877.49-6,459.62

Finding the Fourth Proportional to 21,249.23, 31,877.49 and 6,459.62

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Solution

The fourth proportional to 21,249.23, 31,877.49 and 6,459.62 is: 9,690.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,249.23 : 31,877.49 = 6,459.62 : x
  2. Step 2: Convert to fraction form
    21,249.23/31,877.49 = 6,459.62/x
  3. Step 3: Cross multiply
    21,249.23x = 31,877.49 × 6,459.62
  4. Step 4: Simplify right side
    21,249.23x = 205,916,471.95
  5. Step 5: Solve for x
    x = 205,916,471.95/21,249.23
  6. Step 6: Final answer
    x = 9,690.54

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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.