Home / 33,219.21-45,842.51-18,315.21

Finding the Fourth Proportional to 33,219.21, 45,842.51 and 18,315.21

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Solution

The fourth proportional to 33,219.21, 45,842.51 and 18,315.21 is: 25,274.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,219.21 : 45,842.51 = 18,315.21 : x
  2. Step 2: Convert to fraction form
    33,219.21/45,842.51 = 18,315.21/x
  3. Step 3: Cross multiply
    33,219.21x = 45,842.51 × 18,315.21
  4. Step 4: Simplify right side
    33,219.21x = 839,615,106.00
  5. Step 5: Solve for x
    x = 839,615,106.00/33,219.21
  6. Step 6: Final answer
    x = 25,274.99

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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.