Home / 40,409.88-60,613.39-12,328.80

Finding the Fourth Proportional to 40,409.88, 60,613.39 and 12,328.80

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Solution

The fourth proportional to 40,409.88, 60,613.39 and 12,328.80 is: 18,492.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,409.88 : 60,613.39 = 12,328.80 : x
  2. Step 2: Convert to fraction form
    40,409.88/60,613.39 = 12,328.80/x
  3. Step 3: Cross multiply
    40,409.88x = 60,613.39 × 12,328.80
  4. Step 4: Simplify right side
    40,409.88x = 747,290,362.63
  5. Step 5: Solve for x
    x = 747,290,362.63/40,409.88
  6. Step 6: Final answer
    x = 18,492.76

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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.