Home / 20,530.93-30,798.08-6,491.92

Finding the Fourth Proportional to 20,530.93, 30,798.08 and 6,491.92

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Solution

The fourth proportional to 20,530.93, 30,798.08 and 6,491.92 is: 9,738.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,530.93 : 30,798.08 = 6,491.92 : x
  2. Step 2: Convert to fraction form
    20,530.93/30,798.08 = 6,491.92/x
  3. Step 3: Cross multiply
    20,530.93x = 30,798.08 × 6,491.92
  4. Step 4: Simplify right side
    20,530.93x = 199,938,639.05
  5. Step 5: Solve for x
    x = 199,938,639.05/20,530.93
  6. Step 6: Final answer
    x = 9,738.41

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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.