Home / 21,974.40-30,300.48-14,004

Finding the Fourth Proportional to 21,974.40, 30,300.48 and 14,004

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Solution

The fourth proportional to 21,974.40, 30,300.48 and 14,004 is: 19,310.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,974.40 : 30,300.48 = 14,004 : x
  2. Step 2: Convert to fraction form
    21,974.40/30,300.48 = 14,004/x
  3. Step 3: Cross multiply
    21,974.40x = 30,300.48 × 14,004
  4. Step 4: Simplify right side
    21,974.40x = 424,327,921.92
  5. Step 5: Solve for x
    x = 424,327,921.92/21,974.40
  6. Step 6: Final answer
    x = 19,310.10

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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.