Home / 30,686.37-42,351.21-22,751.19

Finding the Fourth Proportional to 30,686.37, 42,351.21 and 22,751.19

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Solution

The fourth proportional to 30,686.37, 42,351.21 and 22,751.19 is: 31,399.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,686.37 : 42,351.21 = 22,751.19 : x
  2. Step 2: Convert to fraction form
    30,686.37/42,351.21 = 22,751.19/x
  3. Step 3: Cross multiply
    30,686.37x = 42,351.21 × 22,751.19
  4. Step 4: Simplify right side
    30,686.37x = 963,540,425.44
  5. Step 5: Solve for x
    x = 963,540,425.44/30,686.37
  6. Step 6: Final answer
    x = 31,399.62

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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.