Home / 21,359.54-29,476.61-11,799.40

Finding the Fourth Proportional to 21,359.54, 29,476.61 and 11,799.40

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Solution

The fourth proportional to 21,359.54, 29,476.61 and 11,799.40 is: 16,283.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,359.54 : 29,476.61 = 11,799.40 : x
  2. Step 2: Convert to fraction form
    21,359.54/29,476.61 = 11,799.40/x
  3. Step 3: Cross multiply
    21,359.54x = 29,476.61 × 11,799.40
  4. Step 4: Simplify right side
    21,359.54x = 347,806,312.03
  5. Step 5: Solve for x
    x = 347,806,312.03/21,359.54
  6. Step 6: Final answer
    x = 16,283.42

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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.