Home / 57,383.40-86,049.18-20,448.36

Finding the Fourth Proportional to 57,383.40, 86,049.18 and 20,448.36

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Solution

The fourth proportional to 57,383.40, 86,049.18 and 20,448.36 is: 30,663.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,383.40 : 86,049.18 = 20,448.36 : x
  2. Step 2: Convert to fraction form
    57,383.40/86,049.18 = 20,448.36/x
  3. Step 3: Cross multiply
    57,383.40x = 86,049.18 × 20,448.36
  4. Step 4: Simplify right side
    57,383.40x = 1,759,564,610.34
  5. Step 5: Solve for x
    x = 1,759,564,610.34/57,383.40
  6. Step 6: Final answer
    x = 30,663.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.