Home / 30,202.16-45,288.62-12,667.28

Finding the Fourth Proportional to 30,202.16, 45,288.62 and 12,667.28

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Solution

The fourth proportional to 30,202.16, 45,288.62 and 12,667.28 is: 18,994.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,202.16 : 45,288.62 = 12,667.28 : x
  2. Step 2: Convert to fraction form
    30,202.16/45,288.62 = 12,667.28/x
  3. Step 3: Cross multiply
    30,202.16x = 45,288.62 × 12,667.28
  4. Step 4: Simplify right side
    30,202.16x = 573,683,630.35
  5. Step 5: Solve for x
    x = 573,683,630.35/30,202.16
  6. Step 6: Final answer
    x = 18,994.79

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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.