Home / 21,638.06-29,852.52-15,986.42

Finding the Fourth Proportional to 21,638.06, 29,852.52 and 15,986.42

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Solution

The fourth proportional to 21,638.06, 29,852.52 and 15,986.42 is: 22,055.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,638.06 : 29,852.52 = 15,986.42 : x
  2. Step 2: Convert to fraction form
    21,638.06/29,852.52 = 15,986.42/x
  3. Step 3: Cross multiply
    21,638.06x = 29,852.52 × 15,986.42
  4. Step 4: Simplify right side
    21,638.06x = 477,234,922.78
  5. Step 5: Solve for x
    x = 477,234,922.78/21,638.06
  6. Step 6: Final answer
    x = 22,055.35

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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.