Home / 28,090.76-42,125.80-11,441.75

Finding the Fourth Proportional to 28,090.76, 42,125.80 and 11,441.75

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Solution

The fourth proportional to 28,090.76, 42,125.80 and 11,441.75 is: 17,158.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,090.76 : 42,125.80 = 11,441.75 : x
  2. Step 2: Convert to fraction form
    28,090.76/42,125.80 = 11,441.75/x
  3. Step 3: Cross multiply
    28,090.76x = 42,125.80 × 11,441.75
  4. Step 4: Simplify right side
    28,090.76x = 481,992,872.15
  5. Step 5: Solve for x
    x = 481,992,872.15/28,090.76
  6. Step 6: Final answer
    x = 17,158.41

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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.