Home / 30,451.37-42,019.75-17,022.25

Finding the Fourth Proportional to 30,451.37, 42,019.75 and 17,022.25

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Solution

The fourth proportional to 30,451.37, 42,019.75 and 17,022.25 is: 23,488.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,451.37 : 42,019.75 = 17,022.25 : x
  2. Step 2: Convert to fraction form
    30,451.37/42,019.75 = 17,022.25/x
  3. Step 3: Cross multiply
    30,451.37x = 42,019.75 × 17,022.25
  4. Step 4: Simplify right side
    30,451.37x = 715,270,541.83
  5. Step 5: Solve for x
    x = 715,270,541.83/30,451.37
  6. Step 6: Final answer
    x = 23,488.94

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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.