Home / 20,088.24-27,712.44-12,529.68

Finding the Fourth Proportional to 20,088.24, 27,712.44 and 12,529.68

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Solution

The fourth proportional to 20,088.24, 27,712.44 and 12,529.68 is: 17,285.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,088.24 : 27,712.44 = 12,529.68 : x
  2. Step 2: Convert to fraction form
    20,088.24/27,712.44 = 12,529.68/x
  3. Step 3: Cross multiply
    20,088.24x = 27,712.44 × 12,529.68
  4. Step 4: Simplify right side
    20,088.24x = 347,228,005.22
  5. Step 5: Solve for x
    x = 347,228,005.22/20,088.24
  6. Step 6: Final answer
    x = 17,285.14

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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.