Home / 20,409.65-30,626.30-8,562.38

Finding the Fourth Proportional to 20,409.65, 30,626.30 and 8,562.38

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Solution

The fourth proportional to 20,409.65, 30,626.30 and 8,562.38 is: 12,848.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,409.65 : 30,626.30 = 8,562.38 : x
  2. Step 2: Convert to fraction form
    20,409.65/30,626.30 = 8,562.38/x
  3. Step 3: Cross multiply
    20,409.65x = 30,626.30 × 8,562.38
  4. Step 4: Simplify right side
    20,409.65x = 262,233,886.87
  5. Step 5: Solve for x
    x = 262,233,886.87/20,409.65
  6. Step 6: Final answer
    x = 12,848.52

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1.5x scale

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.