Home / 20,376.74-30,504.51-18,238.52

Finding the Fourth Proportional to 20,376.74, 30,504.51 and 18,238.52

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Solution

The fourth proportional to 20,376.74, 30,504.51 and 18,238.52 is: 27,303.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,376.74 : 30,504.51 = 18,238.52 : x
  2. Step 2: Convert to fraction form
    20,376.74/30,504.51 = 18,238.52/x
  3. Step 3: Cross multiply
    20,376.74x = 30,504.51 × 18,238.52
  4. Step 4: Simplify right side
    20,376.74x = 556,357,115.73
  5. Step 5: Solve for x
    x = 556,357,115.73/20,376.74
  6. Step 6: Final answer
    x = 27,303.54

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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.