Home / 21,422.64-32,125.86-10,325.64

Finding the Fourth Proportional to 21,422.64, 32,125.86 and 10,325.64

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Solution

The fourth proportional to 21,422.64, 32,125.86 and 10,325.64 is: 15,484.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,422.64 : 32,125.86 = 10,325.64 : x
  2. Step 2: Convert to fraction form
    21,422.64/32,125.86 = 10,325.64/x
  3. Step 3: Cross multiply
    21,422.64x = 32,125.86 × 10,325.64
  4. Step 4: Simplify right side
    21,422.64x = 331,720,065.05
  5. Step 5: Solve for x
    x = 331,720,065.05/21,422.64
  6. Step 6: Final answer
    x = 15,484.56

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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.