Home / 20,601.81-30,907.53-8,756.01

Finding the Fourth Proportional to 20,601.81, 30,907.53 and 8,756.01

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Solution

The fourth proportional to 20,601.81, 30,907.53 and 8,756.01 is: 13,136.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,601.81 : 30,907.53 = 8,756.01 : x
  2. Step 2: Convert to fraction form
    20,601.81/30,907.53 = 8,756.01/x
  3. Step 3: Cross multiply
    20,601.81x = 30,907.53 × 8,756.01
  4. Step 4: Simplify right side
    20,601.81x = 270,626,641.76
  5. Step 5: Solve for x
    x = 270,626,641.76/20,601.81
  6. Step 6: Final answer
    x = 13,136.06

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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.