Home / 38,143.37-52,637.76-21,147.17

Finding the Fourth Proportional to 38,143.37, 52,637.76 and 21,147.17

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Solution

The fourth proportional to 38,143.37, 52,637.76 and 21,147.17 is: 29,183.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,143.37 : 52,637.76 = 21,147.17 : x
  2. Step 2: Convert to fraction form
    38,143.37/52,637.76 = 21,147.17/x
  3. Step 3: Cross multiply
    38,143.37x = 52,637.76 × 21,147.17
  4. Step 4: Simplify right side
    38,143.37x = 1,113,139,659.14
  5. Step 5: Solve for x
    x = 1,113,139,659.14/38,143.37
  6. Step 6: Final answer
    x = 29,183.04

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Double scale
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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.