Home / 33,186.16-45,803.58-20,445.64

Finding the Fourth Proportional to 33,186.16, 45,803.58 and 20,445.64

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Solution

The fourth proportional to 33,186.16, 45,803.58 and 20,445.64 is: 28,219.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,186.16 : 45,803.58 = 20,445.64 : x
  2. Step 2: Convert to fraction form
    33,186.16/45,803.58 = 20,445.64/x
  3. Step 3: Cross multiply
    33,186.16x = 45,803.58 × 20,445.64
  4. Step 4: Simplify right side
    33,186.16x = 936,483,507.39
  5. Step 5: Solve for x
    x = 936,483,507.39/33,186.16
  6. Step 6: Final answer
    x = 28,219.10

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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.