Home / 30,697.28-45,942.24-19,020.32

Finding the Fourth Proportional to 30,697.28, 45,942.24 and 19,020.32

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Solution

The fourth proportional to 30,697.28, 45,942.24 and 19,020.32 is: 28,466.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,697.28 : 45,942.24 = 19,020.32 : x
  2. Step 2: Convert to fraction form
    30,697.28/45,942.24 = 19,020.32/x
  3. Step 3: Cross multiply
    30,697.28x = 45,942.24 × 19,020.32
  4. Step 4: Simplify right side
    30,697.28x = 873,836,106.32
  5. Step 5: Solve for x
    x = 873,836,106.32/30,697.28
  6. Step 6: Final answer
    x = 28,466.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.