Home / 15,023.08-20,719.23-11,255.08

Finding the Fourth Proportional to 15,023.08, 20,719.23 and 11,255.08

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Solution

The fourth proportional to 15,023.08, 20,719.23 and 11,255.08 is: 15,522.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,023.08 : 20,719.23 = 11,255.08 : x
  2. Step 2: Convert to fraction form
    15,023.08/20,719.23 = 11,255.08/x
  3. Step 3: Cross multiply
    15,023.08x = 20,719.23 × 11,255.08
  4. Step 4: Simplify right side
    15,023.08x = 233,196,591.19
  5. Step 5: Solve for x
    x = 233,196,591.19/15,023.08
  6. Step 6: Final answer
    x = 15,522.56

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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.