Home / 30,418.63-41,974.97-16,988.02

Finding the Fourth Proportional to 30,418.63, 41,974.97 and 16,988.02

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Solution

The fourth proportional to 30,418.63, 41,974.97 and 16,988.02 is: 23,441.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,418.63 : 41,974.97 = 16,988.02 : x
  2. Step 2: Convert to fraction form
    30,418.63/41,974.97 = 16,988.02/x
  3. Step 3: Cross multiply
    30,418.63x = 41,974.97 × 16,988.02
  4. Step 4: Simplify right side
    30,418.63x = 713,071,419.98
  5. Step 5: Solve for x
    x = 713,071,419.98/30,418.63
  6. Step 6: Final answer
    x = 23,441.93

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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.