Home / 28,573.21-42,839.06-11,938.00

Finding the Fourth Proportional to 28,573.21, 42,839.06 and 11,938.00

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Solution

The fourth proportional to 28,573.21, 42,839.06 and 11,938.00 is: 17,898.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,573.21 : 42,839.06 = 11,938.00 : x
  2. Step 2: Convert to fraction form
    28,573.21/42,839.06 = 11,938.00/x
  3. Step 3: Cross multiply
    28,573.21x = 42,839.06 × 11,938.00
  4. Step 4: Simplify right side
    28,573.21x = 511,412,744.15
  5. Step 5: Solve for x
    x = 511,412,744.15/28,573.21
  6. Step 6: Final answer
    x = 17,898.33

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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.