Home / 19,913.31-29,873.21-7,437.69

Finding the Fourth Proportional to 19,913.31, 29,873.21 and 7,437.69

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Solution

The fourth proportional to 19,913.31, 29,873.21 and 7,437.69 is: 11,157.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,913.31 : 29,873.21 = 7,437.69 : x
  2. Step 2: Convert to fraction form
    19,913.31/29,873.21 = 7,437.69/x
  3. Step 3: Cross multiply
    19,913.31x = 29,873.21 × 7,437.69
  4. Step 4: Simplify right side
    19,913.31x = 222,187,638.10
  5. Step 5: Solve for x
    x = 222,187,638.10/19,913.31
  6. Step 6: Final answer
    x = 11,157.75

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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.