Home / 30,251.28-41,743.56-16,820.36

Finding the Fourth Proportional to 30,251.28, 41,743.56 and 16,820.36

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Solution

The fourth proportional to 30,251.28, 41,743.56 and 16,820.36 is: 23,210.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,251.28 : 41,743.56 = 16,820.36 : x
  2. Step 2: Convert to fraction form
    30,251.28/41,743.56 = 16,820.36/x
  3. Step 3: Cross multiply
    30,251.28x = 41,743.56 × 16,820.36
  4. Step 4: Simplify right side
    30,251.28x = 702,141,706.88
  5. Step 5: Solve for x
    x = 702,141,706.88/30,251.28
  6. Step 6: Final answer
    x = 23,210.31

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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.