Home / 21,977.88-30,338.46-15,273.24

Finding the Fourth Proportional to 21,977.88, 30,338.46 and 15,273.24

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Solution

The fourth proportional to 21,977.88, 30,338.46 and 15,273.24 is: 21,083.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,977.88 : 30,338.46 = 15,273.24 : x
  2. Step 2: Convert to fraction form
    21,977.88/30,338.46 = 15,273.24/x
  3. Step 3: Cross multiply
    21,977.88x = 30,338.46 × 15,273.24
  4. Step 4: Simplify right side
    21,977.88x = 463,366,580.81
  5. Step 5: Solve for x
    x = 463,366,580.81/21,977.88
  6. Step 6: Final answer
    x = 21,083.32

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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.