Home / 28,318.80-39,069.04-18,246.44

Finding the Fourth Proportional to 28,318.80, 39,069.04 and 18,246.44

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Solution

The fourth proportional to 28,318.80, 39,069.04 and 18,246.44 is: 25,173.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,318.80 : 39,069.04 = 18,246.44 : x
  2. Step 2: Convert to fraction form
    28,318.80/39,069.04 = 18,246.44/x
  3. Step 3: Cross multiply
    28,318.80x = 39,069.04 × 18,246.44
  4. Step 4: Simplify right side
    28,318.80x = 712,870,894.22
  5. Step 5: Solve for x
    x = 712,870,894.22/28,318.80
  6. Step 6: Final answer
    x = 25,173.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.