Home / 21,227.03-31,828.24-7,182.39

Finding the Fourth Proportional to 21,227.03, 31,828.24 and 7,182.39

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Solution

The fourth proportional to 21,227.03, 31,828.24 and 7,182.39 is: 10,769.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,227.03 : 31,828.24 = 7,182.39 : x
  2. Step 2: Convert to fraction form
    21,227.03/31,828.24 = 7,182.39/x
  3. Step 3: Cross multiply
    21,227.03x = 31,828.24 × 7,182.39
  4. Step 4: Simplify right side
    21,227.03x = 228,602,662.18
  5. Step 5: Solve for x
    x = 228,602,662.18/21,227.03
  6. Step 6: Final answer
    x = 10,769.42

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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.