Home / 20,205.27-30,318.28-8,968.30

Finding the Fourth Proportional to 20,205.27, 30,318.28 and 8,968.30

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Solution

The fourth proportional to 20,205.27, 30,318.28 and 8,968.30 is: 13,457.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,205.27 : 30,318.28 = 8,968.30 : x
  2. Step 2: Convert to fraction form
    20,205.27/30,318.28 = 8,968.30/x
  3. Step 3: Cross multiply
    20,205.27x = 30,318.28 × 8,968.30
  4. Step 4: Simplify right side
    20,205.27x = 271,903,430.52
  5. Step 5: Solve for x
    x = 271,903,430.52/20,205.27
  6. Step 6: Final answer
    x = 13,457.06

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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.