Home / 34,139.56-51,216.30-19,355.08

Finding the Fourth Proportional to 34,139.56, 51,216.30 and 19,355.08

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Solution

The fourth proportional to 34,139.56, 51,216.30 and 19,355.08 is: 29,036.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,139.56 : 51,216.30 = 19,355.08 : x
  2. Step 2: Convert to fraction form
    34,139.56/51,216.30 = 19,355.08/x
  3. Step 3: Cross multiply
    34,139.56x = 51,216.30 × 19,355.08
  4. Step 4: Simplify right side
    34,139.56x = 991,295,583.80
  5. Step 5: Solve for x
    x = 991,295,583.80/34,139.56
  6. Step 6: Final answer
    x = 29,036.57

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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.