Home / 21,268.25-31,904.98-7,230.59

Finding the Fourth Proportional to 21,268.25, 31,904.98 and 7,230.59

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Solution

The fourth proportional to 21,268.25, 31,904.98 and 7,230.59 is: 10,846.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,268.25 : 31,904.98 = 7,230.59 : x
  2. Step 2: Convert to fraction form
    21,268.25/31,904.98 = 7,230.59/x
  3. Step 3: Cross multiply
    21,268.25x = 31,904.98 × 7,230.59
  4. Step 4: Simplify right side
    21,268.25x = 230,691,829.34
  5. Step 5: Solve for x
    x = 230,691,829.34/21,268.25
  6. Step 6: Final answer
    x = 10,846.77

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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.