Home / 33,275.70-45,872.76-20,520.32

Finding the Fourth Proportional to 33,275.70, 45,872.76 and 20,520.32

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Solution

The fourth proportional to 33,275.70, 45,872.76 and 20,520.32 is: 28,288.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,275.70 : 45,872.76 = 20,520.32 : x
  2. Step 2: Convert to fraction form
    33,275.70/45,872.76 = 20,520.32/x
  3. Step 3: Cross multiply
    33,275.70x = 45,872.76 × 20,520.32
  4. Step 4: Simplify right side
    33,275.70x = 941,323,485.12
  5. Step 5: Solve for x
    x = 941,323,485.12/33,275.70
  6. Step 6: Final answer
    x = 28,288.62

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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.