Home / 30,409.20-45,613.80-17,967.60

Finding the Fourth Proportional to 30,409.20, 45,613.80 and 17,967.60

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Solution

The fourth proportional to 30,409.20, 45,613.80 and 17,967.60 is: 26,951.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,409.20 : 45,613.80 = 17,967.60 : x
  2. Step 2: Convert to fraction form
    30,409.20/45,613.80 = 17,967.60/x
  3. Step 3: Cross multiply
    30,409.20x = 45,613.80 × 17,967.60
  4. Step 4: Simplify right side
    30,409.20x = 819,570,512.88
  5. Step 5: Solve for x
    x = 819,570,512.88/30,409.20
  6. Step 6: Final answer
    x = 26,951.40

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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.