Home / 33,319.72-45,976.77-21,399.19

Finding the Fourth Proportional to 33,319.72, 45,976.77 and 21,399.19

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Solution

The fourth proportional to 33,319.72, 45,976.77 and 21,399.19 is: 29,528.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,319.72 : 45,976.77 = 21,399.19 : x
  2. Step 2: Convert to fraction form
    33,319.72/45,976.77 = 21,399.19/x
  3. Step 3: Cross multiply
    33,319.72x = 45,976.77 × 21,399.19
  4. Step 4: Simplify right side
    33,319.72x = 983,865,636.82
  5. Step 5: Solve for x
    x = 983,865,636.82/33,319.72
  6. Step 6: Final answer
    x = 29,528.03

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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.