Home / 33,216.32-45,812.60-21,280.77

Finding the Fourth Proportional to 33,216.32, 45,812.60 and 21,280.77

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Solution

The fourth proportional to 33,216.32, 45,812.60 and 21,280.77 is: 29,350.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,216.32 : 45,812.60 = 21,280.77 : x
  2. Step 2: Convert to fraction form
    33,216.32/45,812.60 = 21,280.77/x
  3. Step 3: Cross multiply
    33,216.32x = 45,812.60 × 21,280.77
  4. Step 4: Simplify right side
    33,216.32x = 974,927,297.30
  5. Step 5: Solve for x
    x = 974,927,297.30/33,216.32
  6. Step 6: Final answer
    x = 29,350.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.