Home / 21,059.34-29,063.88-15,745.02

Finding the Fourth Proportional to 21,059.34, 29,063.88 and 15,745.02

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Solution

The fourth proportional to 21,059.34, 29,063.88 and 15,745.02 is: 21,729.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,059.34 : 29,063.88 = 15,745.02 : x
  2. Step 2: Convert to fraction form
    21,059.34/29,063.88 = 15,745.02/x
  3. Step 3: Cross multiply
    21,059.34x = 29,063.88 × 15,745.02
  4. Step 4: Simplify right side
    21,059.34x = 457,611,371.88
  5. Step 5: Solve for x
    x = 457,611,371.88/21,059.34
  6. Step 6: Final answer
    x = 21,729.62

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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.