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Finding the Fourth Proportional to 30,597.40, 45,923.10 and 18,101.80

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Solution

The fourth proportional to 30,597.40, 45,923.10 and 18,101.80 is: 27,168.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,597.40 : 45,923.10 = 18,101.80 : x
  2. Step 2: Convert to fraction form
    30,597.40/45,923.10 = 18,101.80/x
  3. Step 3: Cross multiply
    30,597.40x = 45,923.10 × 18,101.80
  4. Step 4: Simplify right side
    30,597.40x = 831,290,771.58
  5. Step 5: Solve for x
    x = 831,290,771.58/30,597.40
  6. Step 6: Final answer
    x = 27,168.67

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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.