Home / 30,374.56-45,520.26-19,288.97

Finding the Fourth Proportional to 30,374.56, 45,520.26 and 19,288.97

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Solution

The fourth proportional to 30,374.56, 45,520.26 and 19,288.97 is: 28,907.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,374.56 : 45,520.26 = 19,288.97 : x
  2. Step 2: Convert to fraction form
    30,374.56/45,520.26 = 19,288.97/x
  3. Step 3: Cross multiply
    30,374.56x = 45,520.26 × 19,288.97
  4. Step 4: Simplify right side
    30,374.56x = 878,038,929.53
  5. Step 5: Solve for x
    x = 878,038,929.53/30,374.56
  6. Step 6: Final answer
    x = 28,907.05

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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.