Home / 20,763.95-28,653.24-11,812.03

Finding the Fourth Proportional to 20,763.95, 28,653.24 and 11,812.03

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Solution

The fourth proportional to 20,763.95, 28,653.24 and 11,812.03 is: 16,300.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,763.95 : 28,653.24 = 11,812.03 : x
  2. Step 2: Convert to fraction form
    20,763.95/28,653.24 = 11,812.03/x
  3. Step 3: Cross multiply
    20,763.95x = 28,653.24 × 11,812.03
  4. Step 4: Simplify right side
    20,763.95x = 338,452,903.14
  5. Step 5: Solve for x
    x = 338,452,903.14/20,763.95
  6. Step 6: Final answer
    x = 16,300.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.