Home / 28,282.88-39,031.46-15,536.60

Finding the Fourth Proportional to 28,282.88, 39,031.46 and 15,536.60

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Solution

The fourth proportional to 28,282.88, 39,031.46 and 15,536.60 is: 21,441.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,282.88 : 39,031.46 = 15,536.60 : x
  2. Step 2: Convert to fraction form
    28,282.88/39,031.46 = 15,536.60/x
  3. Step 3: Cross multiply
    28,282.88x = 39,031.46 × 15,536.60
  4. Step 4: Simplify right side
    28,282.88x = 606,416,181.44
  5. Step 5: Solve for x
    x = 606,416,181.44/28,282.88
  6. Step 6: Final answer
    x = 21,441.10

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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.