Home / 34,130.21-51,185.28-11,939.45

Finding the Fourth Proportional to 34,130.21, 51,185.28 and 11,939.45

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Solution

The fourth proportional to 34,130.21, 51,185.28 and 11,939.45 is: 17,905.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,130.21 : 51,185.28 = 11,939.45 : x
  2. Step 2: Convert to fraction form
    34,130.21/51,185.28 = 11,939.45/x
  3. Step 3: Cross multiply
    34,130.21x = 51,185.28 × 11,939.45
  4. Step 4: Simplify right side
    34,130.21x = 611,124,091.30
  5. Step 5: Solve for x
    x = 611,124,091.30/34,130.21
  6. Step 6: Final answer
    x = 17,905.66

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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.