Home / 26,126.62-39,152.57-20,877.60

Finding the Fourth Proportional to 26,126.62, 39,152.57 and 20,877.60

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Solution

The fourth proportional to 26,126.62, 39,152.57 and 20,877.60 is: 31,286.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,126.62 : 39,152.57 = 20,877.60 : x
  2. Step 2: Convert to fraction form
    26,126.62/39,152.57 = 20,877.60/x
  3. Step 3: Cross multiply
    26,126.62x = 39,152.57 × 20,877.60
  4. Step 4: Simplify right side
    26,126.62x = 817,411,551.86
  5. Step 5: Solve for x
    x = 817,411,551.86/26,126.62
  6. Step 6: Final answer
    x = 31,286.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.