Home / 21,283.68-29,371.20-11,852.16

Finding the Fourth Proportional to 21,283.68, 29,371.20 and 11,852.16

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Solution

The fourth proportional to 21,283.68, 29,371.20 and 11,852.16 is: 16,355.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,283.68 : 29,371.20 = 11,852.16 : x
  2. Step 2: Convert to fraction form
    21,283.68/29,371.20 = 11,852.16/x
  3. Step 3: Cross multiply
    21,283.68x = 29,371.20 × 11,852.16
  4. Step 4: Simplify right side
    21,283.68x = 348,112,161.79
  5. Step 5: Solve for x
    x = 348,112,161.79/21,283.68
  6. Step 6: Final answer
    x = 16,355.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.