Home / 33,218.91-45,828.59-21,289.23

Finding the Fourth Proportional to 33,218.91, 45,828.59 and 21,289.23

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Solution

The fourth proportional to 33,218.91, 45,828.59 and 21,289.23 is: 29,370.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,218.91 : 45,828.59 = 21,289.23 : x
  2. Step 2: Convert to fraction form
    33,218.91/45,828.59 = 21,289.23/x
  3. Step 3: Cross multiply
    33,218.91x = 45,828.59 × 21,289.23
  4. Step 4: Simplify right side
    33,218.91x = 975,655,286.64
  5. Step 5: Solve for x
    x = 975,655,286.64/33,218.91
  6. Step 6: Final answer
    x = 29,370.48

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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.