Home / 20,522.89-28,323.31-11,572.25

Finding the Fourth Proportional to 20,522.89, 28,323.31 and 11,572.25

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Solution

The fourth proportional to 20,522.89, 28,323.31 and 11,572.25 is: 15,970.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,522.89 : 28,323.31 = 11,572.25 : x
  2. Step 2: Convert to fraction form
    20,522.89/28,323.31 = 11,572.25/x
  3. Step 3: Cross multiply
    20,522.89x = 28,323.31 × 11,572.25
  4. Step 4: Simplify right side
    20,522.89x = 327,764,467.16
  5. Step 5: Solve for x
    x = 327,764,467.16/20,522.89
  6. Step 6: Final answer
    x = 15,970.67

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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.