Home / 28,138.36-39,008.52-26,640.26

Finding the Fourth Proportional to 28,138.36, 39,008.52 and 26,640.26

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Solution

The fourth proportional to 28,138.36, 39,008.52 and 26,640.26 is: 36,931.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,138.36 : 39,008.52 = 26,640.26 : x
  2. Step 2: Convert to fraction form
    28,138.36/39,008.52 = 26,640.26/x
  3. Step 3: Cross multiply
    28,138.36x = 39,008.52 × 26,640.26
  4. Step 4: Simplify right side
    28,138.36x = 1,039,197,115.02
  5. Step 5: Solve for x
    x = 1,039,197,115.02/28,138.36
  6. Step 6: Final answer
    x = 36,931.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.