Home / 28,101.31-42,110.25-11,440.96

Finding the Fourth Proportional to 28,101.31, 42,110.25 and 11,440.96

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Solution

The fourth proportional to 28,101.31, 42,110.25 and 11,440.96 is: 17,144.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,101.31 : 42,110.25 = 11,440.96 : x
  2. Step 2: Convert to fraction form
    28,101.31/42,110.25 = 11,440.96/x
  3. Step 3: Cross multiply
    28,101.31x = 42,110.25 × 11,440.96
  4. Step 4: Simplify right side
    28,101.31x = 481,781,685.84
  5. Step 5: Solve for x
    x = 481,781,685.84/28,101.31
  6. Step 6: Final answer
    x = 17,144.46

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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.