Home / 33,980.28-50,970.96-12,920.64

Finding the Fourth Proportional to 33,980.28, 50,970.96 and 12,920.64

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Solution

The fourth proportional to 33,980.28, 50,970.96 and 12,920.64 is: 19,381.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,980.28 : 50,970.96 = 12,920.64 : x
  2. Step 2: Convert to fraction form
    33,980.28/50,970.96 = 12,920.64/x
  3. Step 3: Cross multiply
    33,980.28x = 50,970.96 × 12,920.64
  4. Step 4: Simplify right side
    33,980.28x = 658,577,424.61
  5. Step 5: Solve for x
    x = 658,577,424.61/33,980.28
  6. Step 6: Final answer
    x = 19,381.17

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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.