Home / 38,600.64-53,264.40-21,605.83

Finding the Fourth Proportional to 38,600.64, 53,264.40 and 21,605.83

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Solution

The fourth proportional to 38,600.64, 53,264.40 and 21,605.83 is: 29,813.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,600.64 : 53,264.40 = 21,605.83 : x
  2. Step 2: Convert to fraction form
    38,600.64/53,264.40 = 21,605.83/x
  3. Step 3: Cross multiply
    38,600.64x = 53,264.40 × 21,605.83
  4. Step 4: Simplify right side
    38,600.64x = 1,150,821,571.45
  5. Step 5: Solve for x
    x = 1,150,821,571.45/38,600.64
  6. Step 6: Final answer
    x = 29,813.54

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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.