Home / 39,892.56-59,838.84-12,190.32

Finding the Fourth Proportional to 39,892.56, 59,838.84 and 12,190.32

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Solution

The fourth proportional to 39,892.56, 59,838.84 and 12,190.32 is: 18,285.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,892.56 : 59,838.84 = 12,190.32 : x
  2. Step 2: Convert to fraction form
    39,892.56/59,838.84 = 12,190.32/x
  3. Step 3: Cross multiply
    39,892.56x = 59,838.84 × 12,190.32
  4. Step 4: Simplify right side
    39,892.56x = 729,454,608.03
  5. Step 5: Solve for x
    x = 729,454,608.03/39,892.56
  6. Step 6: Final answer
    x = 18,285.48

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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.