Home / 33,215.20-49,828.16-12,440.32

Finding the Fourth Proportional to 33,215.20, 49,828.16 and 12,440.32

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Solution

The fourth proportional to 33,215.20, 49,828.16 and 12,440.32 is: 18,662.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,215.20 : 49,828.16 = 12,440.32 : x
  2. Step 2: Convert to fraction form
    33,215.20/49,828.16 = 12,440.32/x
  3. Step 3: Cross multiply
    33,215.20x = 49,828.16 × 12,440.32
  4. Step 4: Simplify right side
    33,215.20x = 619,878,255.41
  5. Step 5: Solve for x
    x = 619,878,255.41/33,215.20
  6. Step 6: Final answer
    x = 18,662.49

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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.