Home / 22,418.16-30,935.70-12,984.90

Finding the Fourth Proportional to 22,418.16, 30,935.70 and 12,984.90

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Solution

The fourth proportional to 22,418.16, 30,935.70 and 12,984.90 is: 17,918.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,418.16 : 30,935.70 = 12,984.90 : x
  2. Step 2: Convert to fraction form
    22,418.16/30,935.70 = 12,984.90/x
  3. Step 3: Cross multiply
    22,418.16x = 30,935.70 × 12,984.90
  4. Step 4: Simplify right side
    22,418.16x = 401,696,970.93
  5. Step 5: Solve for x
    x = 401,696,970.93/22,418.16
  6. Step 6: Final answer
    x = 17,918.37

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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.