Home / 30,402.71-45,673.26-21,995.15

Finding the Fourth Proportional to 30,402.71, 45,673.26 and 21,995.15

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Solution

The fourth proportional to 30,402.71, 45,673.26 and 21,995.15 is: 33,042.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,402.71 : 45,673.26 = 21,995.15 : x
  2. Step 2: Convert to fraction form
    30,402.71/45,673.26 = 21,995.15/x
  3. Step 3: Cross multiply
    30,402.71x = 45,673.26 × 21,995.15
  4. Step 4: Simplify right side
    30,402.71x = 1,004,589,976.32
  5. Step 5: Solve for x
    x = 1,004,589,976.32/30,402.71
  6. Step 6: Final answer
    x = 33,042.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.