Home / 38,905.92-53,693.28-29,911.68

Finding the Fourth Proportional to 38,905.92, 53,693.28 and 29,911.68

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Solution

The fourth proportional to 38,905.92, 53,693.28 and 29,911.68 is: 41,280.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,905.92 : 53,693.28 = 29,911.68 : x
  2. Step 2: Convert to fraction form
    38,905.92/53,693.28 = 29,911.68/x
  3. Step 3: Cross multiply
    38,905.92x = 53,693.28 × 29,911.68
  4. Step 4: Simplify right side
    38,905.92x = 1,606,056,209.51
  5. Step 5: Solve for x
    x = 1,606,056,209.51/38,905.92
  6. Step 6: Final answer
    x = 41,280.51

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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.