Home / 25,785.78-35,578.17-15,024.12

Finding the Fourth Proportional to 25,785.78, 35,578.17 and 15,024.12

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Solution

The fourth proportional to 25,785.78, 35,578.17 and 15,024.12 is: 20,729.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,785.78 : 35,578.17 = 15,024.12 : x
  2. Step 2: Convert to fraction form
    25,785.78/35,578.17 = 15,024.12/x
  3. Step 3: Cross multiply
    25,785.78x = 35,578.17 × 15,024.12
  4. Step 4: Simplify right side
    25,785.78x = 534,530,695.46
  5. Step 5: Solve for x
    x = 534,530,695.46/25,785.78
  6. Step 6: Final answer
    x = 20,729.67

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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.