Home / 33,316.86-45,969.75-19,890.30

Finding the Fourth Proportional to 33,316.86, 45,969.75 and 19,890.30

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Solution

The fourth proportional to 33,316.86, 45,969.75 and 19,890.30 is: 27,444.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,316.86 : 45,969.75 = 19,890.30 : x
  2. Step 2: Convert to fraction form
    33,316.86/45,969.75 = 19,890.30/x
  3. Step 3: Cross multiply
    33,316.86x = 45,969.75 × 19,890.30
  4. Step 4: Simplify right side
    33,316.86x = 914,352,118.43
  5. Step 5: Solve for x
    x = 914,352,118.43/33,316.86
  6. Step 6: Final answer
    x = 27,444.13

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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.