Home / 22,785.99-31,451.27-13,228.02

Finding the Fourth Proportional to 22,785.99, 31,451.27 and 13,228.02

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Solution

The fourth proportional to 22,785.99, 31,451.27 and 13,228.02 is: 18,258.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,785.99 : 31,451.27 = 13,228.02 : x
  2. Step 2: Convert to fraction form
    22,785.99/31,451.27 = 13,228.02/x
  3. Step 3: Cross multiply
    22,785.99x = 31,451.27 × 13,228.02
  4. Step 4: Simplify right side
    22,785.99x = 416,038,105.19
  5. Step 5: Solve for x
    x = 416,038,105.19/22,785.99
  6. Step 6: Final answer
    x = 18,258.50

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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.