Home / 20,257.93-30,389.93-7,107.99

Finding the Fourth Proportional to 20,257.93, 30,389.93 and 7,107.99

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Solution

The fourth proportional to 20,257.93, 30,389.93 and 7,107.99 is: 10,663.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,257.93 : 30,389.93 = 7,107.99 : x
  2. Step 2: Convert to fraction form
    20,257.93/30,389.93 = 7,107.99/x
  3. Step 3: Cross multiply
    20,257.93x = 30,389.93 × 7,107.99
  4. Step 4: Simplify right side
    20,257.93x = 216,011,318.54
  5. Step 5: Solve for x
    x = 216,011,318.54/20,257.93
  6. Step 6: Final answer
    x = 10,663.05

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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.