Home / 20,605.36-30,642.94-19,949.24

Finding the Fourth Proportional to 20,605.36, 30,642.94 and 19,949.24

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Solution

The fourth proportional to 20,605.36, 30,642.94 and 19,949.24 is: 29,667.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,605.36 : 30,642.94 = 19,949.24 : x
  2. Step 2: Convert to fraction form
    20,605.36/30,642.94 = 19,949.24/x
  3. Step 3: Cross multiply
    20,605.36x = 30,642.94 × 19,949.24
  4. Step 4: Simplify right side
    20,605.36x = 611,303,364.37
  5. Step 5: Solve for x
    x = 611,303,364.37/20,605.36
  6. Step 6: Final answer
    x = 29,667.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.