Home / 25,640.85-35,384.39-14,155.77

Finding the Fourth Proportional to 25,640.85, 35,384.39 and 14,155.77

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Solution

The fourth proportional to 25,640.85, 35,384.39 and 14,155.77 is: 19,534.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,640.85 : 35,384.39 = 14,155.77 : x
  2. Step 2: Convert to fraction form
    25,640.85/35,384.39 = 14,155.77/x
  3. Step 3: Cross multiply
    25,640.85x = 35,384.39 × 14,155.77
  4. Step 4: Simplify right side
    25,640.85x = 500,893,286.43
  5. Step 5: Solve for x
    x = 500,893,286.43/25,640.85
  6. Step 6: Final answer
    x = 19,534.97

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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.