Home / 21,293.64-31,940.35-11,933.69

Finding the Fourth Proportional to 21,293.64, 31,940.35 and 11,933.69

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Solution

The fourth proportional to 21,293.64, 31,940.35 and 11,933.69 is: 17,900.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,293.64 : 31,940.35 = 11,933.69 : x
  2. Step 2: Convert to fraction form
    21,293.64/31,940.35 = 11,933.69/x
  3. Step 3: Cross multiply
    21,293.64x = 31,940.35 × 11,933.69
  4. Step 4: Simplify right side
    21,293.64x = 381,166,045.86
  5. Step 5: Solve for x
    x = 381,166,045.86/21,293.64
  6. Step 6: Final answer
    x = 17,900.46

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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.