Home / 15,915.88-23,872.20-4,230.28

Finding the Fourth Proportional to 15,915.88, 23,872.20 and 4,230.28

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Solution

The fourth proportional to 15,915.88, 23,872.20 and 4,230.28 is: 6,344.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,915.88 : 23,872.20 = 4,230.28 : x
  2. Step 2: Convert to fraction form
    15,915.88/23,872.20 = 4,230.28/x
  3. Step 3: Cross multiply
    15,915.88x = 23,872.20 × 4,230.28
  4. Step 4: Simplify right side
    15,915.88x = 100,986,090.22
  5. Step 5: Solve for x
    x = 100,986,090.22/15,915.88
  6. Step 6: Final answer
    x = 6,344.99

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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.