Home / 30,226.34-45,346.80-19,145.54

Finding the Fourth Proportional to 30,226.34, 45,346.80 and 19,145.54

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Solution

The fourth proportional to 30,226.34, 45,346.80 and 19,145.54 is: 28,722.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,226.34 : 45,346.80 = 19,145.54 : x
  2. Step 2: Convert to fraction form
    30,226.34/45,346.80 = 19,145.54/x
  3. Step 3: Cross multiply
    30,226.34x = 45,346.80 × 19,145.54
  4. Step 4: Simplify right side
    30,226.34x = 868,188,973.27
  5. Step 5: Solve for x
    x = 868,188,973.27/30,226.34
  6. Step 6: Final answer
    x = 28,722.93

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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.