Home / 28,135.44-42,207.84-10,606.56

Finding the Fourth Proportional to 28,135.44, 42,207.84 and 10,606.56

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Solution

The fourth proportional to 28,135.44, 42,207.84 and 10,606.56 is: 15,911.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,135.44 : 42,207.84 = 10,606.56 : x
  2. Step 2: Convert to fraction form
    28,135.44/42,207.84 = 10,606.56/x
  3. Step 3: Cross multiply
    28,135.44x = 42,207.84 × 10,606.56
  4. Step 4: Simplify right side
    28,135.44x = 447,679,987.43
  5. Step 5: Solve for x
    x = 447,679,987.43/28,135.44
  6. Step 6: Final answer
    x = 15,911.60

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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.