Home / 38,271.88-57,330.06-19,765

Finding the Fourth Proportional to 38,271.88, 57,330.06 and 19,765

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Solution

The fourth proportional to 38,271.88, 57,330.06 and 19,765 is: 29,607.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,271.88 : 57,330.06 = 19,765 : x
  2. Step 2: Convert to fraction form
    38,271.88/57,330.06 = 19,765/x
  3. Step 3: Cross multiply
    38,271.88x = 57,330.06 × 19,765
  4. Step 4: Simplify right side
    38,271.88x = 1,133,128,635.90
  5. Step 5: Solve for x
    x = 1,133,128,635.90/38,271.88
  6. Step 6: Final answer
    x = 29,607.34

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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.