Home / 23,207.72-31,990.34-19,424.21

Finding the Fourth Proportional to 23,207.72, 31,990.34 and 19,424.21

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Solution

The fourth proportional to 23,207.72, 31,990.34 and 19,424.21 is: 26,775.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,207.72 : 31,990.34 = 19,424.21 : x
  2. Step 2: Convert to fraction form
    23,207.72/31,990.34 = 19,424.21/x
  3. Step 3: Cross multiply
    23,207.72x = 31,990.34 × 19,424.21
  4. Step 4: Simplify right side
    23,207.72x = 621,386,970.74
  5. Step 5: Solve for x
    x = 621,386,970.74/23,207.72
  6. Step 6: Final answer
    x = 26,775.02

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.