Home / 19,258.17-28,849.66-12,664.36

Finding the Fourth Proportional to 19,258.17, 28,849.66 and 12,664.36

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Solution

The fourth proportional to 19,258.17, 28,849.66 and 12,664.36 is: 18,971.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,258.17 : 28,849.66 = 12,664.36 : x
  2. Step 2: Convert to fraction form
    19,258.17/28,849.66 = 12,664.36/x
  3. Step 3: Cross multiply
    19,258.17x = 28,849.66 × 12,664.36
  4. Step 4: Simplify right side
    19,258.17x = 365,362,480.12
  5. Step 5: Solve for x
    x = 365,362,480.12/19,258.17
  6. Step 6: Final answer
    x = 18,971.82

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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.