Home / 38,619.79-57,966.23-19,912.84

Finding the Fourth Proportional to 38,619.79, 57,966.23 and 19,912.84

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Solution

The fourth proportional to 38,619.79, 57,966.23 and 19,912.84 is: 29,888.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,619.79 : 57,966.23 = 19,912.84 : x
  2. Step 2: Convert to fraction form
    38,619.79/57,966.23 = 19,912.84/x
  3. Step 3: Cross multiply
    38,619.79x = 57,966.23 × 19,912.84
  4. Step 4: Simplify right side
    38,619.79x = 1,154,272,168.26
  5. Step 5: Solve for x
    x = 1,154,272,168.26/38,619.79
  6. Step 6: Final answer
    x = 29,888.10

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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.