Home / 30,141.87-45,206.31-19,033.72

Finding the Fourth Proportional to 30,141.87, 45,206.31 and 19,033.72

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Solution

The fourth proportional to 30,141.87, 45,206.31 and 19,033.72 is: 28,546.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,141.87 : 45,206.31 = 19,033.72 : x
  2. Step 2: Convert to fraction form
    30,141.87/45,206.31 = 19,033.72/x
  3. Step 3: Cross multiply
    30,141.87x = 45,206.31 × 19,033.72
  4. Step 4: Simplify right side
    30,141.87x = 860,444,246.77
  5. Step 5: Solve for x
    x = 860,444,246.77/30,141.87
  6. Step 6: Final answer
    x = 28,546.48

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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.