Home / 22,128.57-33,192.74-12,762.51

Finding the Fourth Proportional to 22,128.57, 33,192.74 and 12,762.51

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Solution

The fourth proportional to 22,128.57, 33,192.74 and 12,762.51 is: 19,143.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,128.57 : 33,192.74 = 12,762.51 : x
  2. Step 2: Convert to fraction form
    22,128.57/33,192.74 = 12,762.51/x
  3. Step 3: Cross multiply
    22,128.57x = 33,192.74 × 12,762.51
  4. Step 4: Simplify right side
    22,128.57x = 423,622,698.53
  5. Step 5: Solve for x
    x = 423,622,698.53/22,128.57
  6. Step 6: Final answer
    x = 19,143.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.