Home / 30,583.40-45,902.10-18,087.80

Finding the Fourth Proportional to 30,583.40, 45,902.10 and 18,087.80

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Solution

The fourth proportional to 30,583.40, 45,902.10 and 18,087.80 is: 27,147.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,583.40 : 45,902.10 = 18,087.80 : x
  2. Step 2: Convert to fraction form
    30,583.40/45,902.10 = 18,087.80/x
  3. Step 3: Cross multiply
    30,583.40x = 45,902.10 × 18,087.80
  4. Step 4: Simplify right side
    30,583.40x = 830,268,004.38
  5. Step 5: Solve for x
    x = 830,268,004.38/30,583.40
  6. Step 6: Final answer
    x = 27,147.67

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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.