Home / 38,848.05-53,608.64-21,852

Finding the Fourth Proportional to 38,848.05, 53,608.64 and 21,852

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Solution

The fourth proportional to 38,848.05, 53,608.64 and 21,852 is: 30,154.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,848.05 : 53,608.64 = 21,852 : x
  2. Step 2: Convert to fraction form
    38,848.05/53,608.64 = 21,852/x
  3. Step 3: Cross multiply
    38,848.05x = 53,608.64 × 21,852
  4. Step 4: Simplify right side
    38,848.05x = 1,171,455,892.02
  5. Step 5: Solve for x
    x = 1,171,455,892.02/38,848.05
  6. Step 6: Final answer
    x = 30,154.82

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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.