Home / 47,440.32-71,164.68-12,380.28

Finding the Fourth Proportional to 47,440.32, 71,164.68 and 12,380.28

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Solution

The fourth proportional to 47,440.32, 71,164.68 and 12,380.28 is: 18,571.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,440.32 : 71,164.68 = 12,380.28 : x
  2. Step 2: Convert to fraction form
    47,440.32/71,164.68 = 12,380.28/x
  3. Step 3: Cross multiply
    47,440.32x = 71,164.68 × 12,380.28
  4. Step 4: Simplify right side
    47,440.32x = 881,038,664.51
  5. Step 5: Solve for x
    x = 881,038,664.51/47,440.32
  6. Step 6: Final answer
    x = 18,571.52

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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.