Home / 33,158.57-45,741.71-20,561.45

Finding the Fourth Proportional to 33,158.57, 45,741.71 and 20,561.45

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Solution

The fourth proportional to 33,158.57, 45,741.71 and 20,561.45 is: 28,364.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,158.57 : 45,741.71 = 20,561.45 : x
  2. Step 2: Convert to fraction form
    33,158.57/45,741.71 = 20,561.45/x
  3. Step 3: Cross multiply
    33,158.57x = 45,741.71 × 20,561.45
  4. Step 4: Simplify right side
    33,158.57x = 940,515,705.77
  5. Step 5: Solve for x
    x = 940,515,705.77/33,158.57
  6. Step 6: Final answer
    x = 28,364.19

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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.