Home / 33,261.12-45,889.20-20,685.06

Finding the Fourth Proportional to 33,261.12, 45,889.20 and 20,685.06

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Solution

The fourth proportional to 33,261.12, 45,889.20 and 20,685.06 is: 28,538.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,261.12 : 45,889.20 = 20,685.06 : x
  2. Step 2: Convert to fraction form
    33,261.12/45,889.20 = 20,685.06/x
  3. Step 3: Cross multiply
    33,261.12x = 45,889.20 × 20,685.06
  4. Step 4: Simplify right side
    33,261.12x = 949,220,855.35
  5. Step 5: Solve for x
    x = 949,220,855.35/33,261.12
  6. Step 6: Final answer
    x = 28,538.45

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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.