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Finding the Fourth Proportional to 23,661.40, 35,492.10 and 20,143.30

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Solution

The fourth proportional to 23,661.40, 35,492.10 and 20,143.30 is: 30,214.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,661.40 : 35,492.10 = 20,143.30 : x
  2. Step 2: Convert to fraction form
    23,661.40/35,492.10 = 20,143.30/x
  3. Step 3: Cross multiply
    23,661.40x = 35,492.10 × 20,143.30
  4. Step 4: Simplify right side
    23,661.40x = 714,928,017.93
  5. Step 5: Solve for x
    x = 714,928,017.93/23,661.40
  6. Step 6: Final answer
    x = 30,214.95

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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.