Home / 30,518.40-45,759.42-9,452.20

Finding the Fourth Proportional to 30,518.40, 45,759.42 and 9,452.20

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Solution

The fourth proportional to 30,518.40, 45,759.42 and 9,452.20 is: 14,172.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,518.40 : 45,759.42 = 9,452.20 : x
  2. Step 2: Convert to fraction form
    30,518.40/45,759.42 = 9,452.20/x
  3. Step 3: Cross multiply
    30,518.40x = 45,759.42 × 9,452.20
  4. Step 4: Simplify right side
    30,518.40x = 432,527,189.72
  5. Step 5: Solve for x
    x = 432,527,189.72/30,518.40
  6. Step 6: Final answer
    x = 14,172.67

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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.