Home / 33,303.52-45,979.36-21,387.86

Finding the Fourth Proportional to 33,303.52, 45,979.36 and 21,387.86

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Solution

The fourth proportional to 33,303.52, 45,979.36 and 21,387.86 is: 29,528.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,303.52 : 45,979.36 = 21,387.86 : x
  2. Step 2: Convert to fraction form
    33,303.52/45,979.36 = 21,387.86/x
  3. Step 3: Cross multiply
    33,303.52x = 45,979.36 × 21,387.86
  4. Step 4: Simplify right side
    33,303.52x = 983,400,003.63
  5. Step 5: Solve for x
    x = 983,400,003.63/33,303.52
  6. Step 6: Final answer
    x = 29,528.41

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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.