Home / 21,272.85-29,396.99-15,958.44

Finding the Fourth Proportional to 21,272.85, 29,396.99 and 15,958.44

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Solution

The fourth proportional to 21,272.85, 29,396.99 and 15,958.44 is: 22,053.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,272.85 : 29,396.99 = 15,958.44 : x
  2. Step 2: Convert to fraction form
    21,272.85/29,396.99 = 15,958.44/x
  3. Step 3: Cross multiply
    21,272.85x = 29,396.99 × 15,958.44
  4. Step 4: Simplify right side
    21,272.85x = 469,130,140.99
  5. Step 5: Solve for x
    x = 469,130,140.99/21,272.85
  6. Step 6: Final answer
    x = 22,053.00

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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.