Home / 38,634.60-53,328.42-22,718.28

Finding the Fourth Proportional to 38,634.60, 53,328.42 and 22,718.28

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Solution

The fourth proportional to 38,634.60, 53,328.42 and 22,718.28 is: 31,358.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,634.60 : 53,328.42 = 22,718.28 : x
  2. Step 2: Convert to fraction form
    38,634.60/53,328.42 = 22,718.28/x
  3. Step 3: Cross multiply
    38,634.60x = 53,328.42 × 22,718.28
  4. Step 4: Simplify right side
    38,634.60x = 1,211,529,977.52
  5. Step 5: Solve for x
    x = 1,211,529,977.52/38,634.60
  6. Step 6: Final answer
    x = 31,358.68

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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.