Home / 28,639.27-39,542.66-19,101.70

Finding the Fourth Proportional to 28,639.27, 39,542.66 and 19,101.70

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Solution

The fourth proportional to 28,639.27, 39,542.66 and 19,101.70 is: 26,374.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,639.27 : 39,542.66 = 19,101.70 : x
  2. Step 2: Convert to fraction form
    28,639.27/39,542.66 = 19,101.70/x
  3. Step 3: Cross multiply
    28,639.27x = 39,542.66 × 19,101.70
  4. Step 4: Simplify right side
    28,639.27x = 755,332,028.52
  5. Step 5: Solve for x
    x = 755,332,028.52/28,639.27
  6. Step 6: Final answer
    x = 26,374.00

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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.