Home / 21,069.79-29,076.27-11,638.36

Finding the Fourth Proportional to 21,069.79, 29,076.27 and 11,638.36

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Solution

The fourth proportional to 21,069.79, 29,076.27 and 11,638.36 is: 16,060.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,069.79 : 29,076.27 = 11,638.36 : x
  2. Step 2: Convert to fraction form
    21,069.79/29,076.27 = 11,638.36/x
  3. Step 3: Cross multiply
    21,069.79x = 29,076.27 × 11,638.36
  4. Step 4: Simplify right side
    21,069.79x = 338,400,097.72
  5. Step 5: Solve for x
    x = 338,400,097.72/21,069.79
  6. Step 6: Final answer
    x = 16,060.91

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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.