Home / 19,906.47-27,459.54-12,441.51

Finding the Fourth Proportional to 19,906.47, 27,459.54 and 12,441.51

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Solution

The fourth proportional to 19,906.47, 27,459.54 and 12,441.51 is: 17,162.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,906.47 : 27,459.54 = 12,441.51 : x
  2. Step 2: Convert to fraction form
    19,906.47/27,459.54 = 12,441.51/x
  3. Step 3: Cross multiply
    19,906.47x = 27,459.54 × 12,441.51
  4. Step 4: Simplify right side
    19,906.47x = 341,638,141.51
  5. Step 5: Solve for x
    x = 341,638,141.51/19,906.47
  6. Step 6: Final answer
    x = 17,162.17

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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.