Home / 33,319.21-45,976.06-21,398.69

Finding the Fourth Proportional to 33,319.21, 45,976.06 and 21,398.69

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Solution

The fourth proportional to 33,319.21, 45,976.06 and 21,398.69 is: 29,527.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,319.21 : 45,976.06 = 21,398.69 : x
  2. Step 2: Convert to fraction form
    33,319.21/45,976.06 = 21,398.69/x
  3. Step 3: Cross multiply
    33,319.21x = 45,976.06 × 21,398.69
  4. Step 4: Simplify right side
    33,319.21x = 983,827,455.36
  5. Step 5: Solve for x
    x = 983,827,455.36/33,319.21
  6. Step 6: Final answer
    x = 29,527.33

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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.