Home / 38,905.56-53,686.44-21,904.38

Finding the Fourth Proportional to 38,905.56, 53,686.44 and 21,904.38

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Solution

The fourth proportional to 38,905.56, 53,686.44 and 21,904.38 is: 30,226.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,905.56 : 53,686.44 = 21,904.38 : x
  2. Step 2: Convert to fraction form
    38,905.56/53,686.44 = 21,904.38/x
  3. Step 3: Cross multiply
    38,905.56x = 53,686.44 × 21,904.38
  4. Step 4: Simplify right side
    38,905.56x = 1,175,968,182.61
  5. Step 5: Solve for x
    x = 1,175,968,182.61/38,905.56
  6. Step 6: Final answer
    x = 30,226.22

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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.