Home / 28,131.90-42,204.96-10,601.88

Finding the Fourth Proportional to 28,131.90, 42,204.96 and 10,601.88

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Solution

The fourth proportional to 28,131.90, 42,204.96 and 10,601.88 is: 15,905.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,131.90 : 42,204.96 = 10,601.88 : x
  2. Step 2: Convert to fraction form
    28,131.90/42,204.96 = 10,601.88/x
  3. Step 3: Cross multiply
    28,131.90x = 42,204.96 × 10,601.88
  4. Step 4: Simplify right side
    28,131.90x = 447,451,921.32
  5. Step 5: Solve for x
    x = 447,451,921.32/28,131.90
  6. Step 6: Final answer
    x = 15,905.50

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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.