Home / 21,933.36-30,263.22-12,974.04

Finding the Fourth Proportional to 21,933.36, 30,263.22 and 12,974.04

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Solution

The fourth proportional to 21,933.36, 30,263.22 and 12,974.04 is: 17,901.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,933.36 : 30,263.22 = 12,974.04 : x
  2. Step 2: Convert to fraction form
    21,933.36/30,263.22 = 12,974.04/x
  3. Step 3: Cross multiply
    21,933.36x = 30,263.22 × 12,974.04
  4. Step 4: Simplify right side
    21,933.36x = 392,636,226.81
  5. Step 5: Solve for x
    x = 392,636,226.81/21,933.36
  6. Step 6: Final answer
    x = 17,901.33

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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.