Home / 18,941.28-28,409.18-5,790.12

Finding the Fourth Proportional to 18,941.28, 28,409.18 and 5,790.12

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Solution

The fourth proportional to 18,941.28, 28,409.18 and 5,790.12 is: 8,684.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,941.28 : 28,409.18 = 5,790.12 : x
  2. Step 2: Convert to fraction form
    18,941.28/28,409.18 = 5,790.12/x
  3. Step 3: Cross multiply
    18,941.28x = 28,409.18 × 5,790.12
  4. Step 4: Simplify right side
    18,941.28x = 164,492,561.30
  5. Step 5: Solve for x
    x = 164,492,561.30/18,941.28
  6. Step 6: Final answer
    x = 8,684.34

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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.