Home / 21,332.83-31,999.11-11,476.75

Finding the Fourth Proportional to 21,332.83, 31,999.11 and 11,476.75

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Solution

The fourth proportional to 21,332.83, 31,999.11 and 11,476.75 is: 17,215.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,332.83 : 31,999.11 = 11,476.75 : x
  2. Step 2: Convert to fraction form
    21,332.83/31,999.11 = 11,476.75/x
  3. Step 3: Cross multiply
    21,332.83x = 31,999.11 × 11,476.75
  4. Step 4: Simplify right side
    21,332.83x = 367,245,785.69
  5. Step 5: Solve for x
    x = 367,245,785.69/21,332.83
  6. Step 6: Final answer
    x = 17,215.05

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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.