Home / 30,270.62-45,407.63-9,211.35

Finding the Fourth Proportional to 30,270.62, 45,407.63 and 9,211.35

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Solution

The fourth proportional to 30,270.62, 45,407.63 and 9,211.35 is: 13,817.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,270.62 : 45,407.63 = 9,211.35 : x
  2. Step 2: Convert to fraction form
    30,270.62/45,407.63 = 9,211.35/x
  3. Step 3: Cross multiply
    30,270.62x = 45,407.63 × 9,211.35
  4. Step 4: Simplify right side
    30,270.62x = 418,265,405.45
  5. Step 5: Solve for x
    x = 418,265,405.45/30,270.62
  6. Step 6: Final answer
    x = 13,817.54

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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.