Home / 28,133.82-42,188.42-13,346.96

Finding the Fourth Proportional to 28,133.82, 42,188.42 and 13,346.96

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Solution

The fourth proportional to 28,133.82, 42,188.42 and 13,346.96 is: 20,014.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,133.82 : 42,188.42 = 13,346.96 : x
  2. Step 2: Convert to fraction form
    28,133.82/42,188.42 = 13,346.96/x
  3. Step 3: Cross multiply
    28,133.82x = 42,188.42 × 13,346.96
  4. Step 4: Simplify right side
    28,133.82x = 563,086,976.63
  5. Step 5: Solve for x
    x = 563,086,976.63/28,133.82
  6. Step 6: Final answer
    x = 20,014.59

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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.