Home / 21,244.28-31,852.54-11,885.33

Finding the Fourth Proportional to 21,244.28, 31,852.54 and 11,885.33

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Solution

The fourth proportional to 21,244.28, 31,852.54 and 11,885.33 is: 17,820.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,244.28 : 31,852.54 = 11,885.33 : x
  2. Step 2: Convert to fraction form
    21,244.28/31,852.54 = 11,885.33/x
  3. Step 3: Cross multiply
    21,244.28x = 31,852.54 × 11,885.33
  4. Step 4: Simplify right side
    21,244.28x = 378,578,043.73
  5. Step 5: Solve for x
    x = 378,578,043.73/21,244.28
  6. Step 6: Final answer
    x = 17,820.24

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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.