Home / 21,379.88-32,076.74-10,285.13

Finding the Fourth Proportional to 21,379.88, 32,076.74 and 10,285.13

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Solution

The fourth proportional to 21,379.88, 32,076.74 and 10,285.13 is: 15,431.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,379.88 : 32,076.74 = 10,285.13 : x
  2. Step 2: Convert to fraction form
    21,379.88/32,076.74 = 10,285.13/x
  3. Step 3: Cross multiply
    21,379.88x = 32,076.74 × 10,285.13
  4. Step 4: Simplify right side
    21,379.88x = 329,913,229.07
  5. Step 5: Solve for x
    x = 329,913,229.07/21,379.88
  6. Step 6: Final answer
    x = 15,431.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.