Home / 21,075.26-29,217.02-19,951.68

Finding the Fourth Proportional to 21,075.26, 29,217.02 and 19,951.68

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Solution

The fourth proportional to 21,075.26, 29,217.02 and 19,951.68 is: 27,659.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,075.26 : 29,217.02 = 19,951.68 : x
  2. Step 2: Convert to fraction form
    21,075.26/29,217.02 = 19,951.68/x
  3. Step 3: Cross multiply
    21,075.26x = 29,217.02 × 19,951.68
  4. Step 4: Simplify right side
    21,075.26x = 582,928,633.59
  5. Step 5: Solve for x
    x = 582,928,633.59/21,075.26
  6. Step 6: Final answer
    x = 27,659.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.