Home / 21,897.38-30,218.43-12,465.95

Finding the Fourth Proportional to 21,897.38, 30,218.43 and 12,465.95

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Solution

The fourth proportional to 21,897.38, 30,218.43 and 12,465.95 is: 17,203.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,897.38 : 30,218.43 = 12,465.95 : x
  2. Step 2: Convert to fraction form
    21,897.38/30,218.43 = 12,465.95/x
  3. Step 3: Cross multiply
    21,897.38x = 30,218.43 × 12,465.95
  4. Step 4: Simplify right side
    21,897.38x = 376,701,286.37
  5. Step 5: Solve for x
    x = 376,701,286.37/21,897.38
  6. Step 6: Final answer
    x = 17,203.03

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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.