Home / 28,329.24-39,077.13-20,382.23

Finding the Fourth Proportional to 28,329.24, 39,077.13 and 20,382.23

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Solution

The fourth proportional to 28,329.24, 39,077.13 and 20,382.23 is: 28,115.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,329.24 : 39,077.13 = 20,382.23 : x
  2. Step 2: Convert to fraction form
    28,329.24/39,077.13 = 20,382.23/x
  3. Step 3: Cross multiply
    28,329.24x = 39,077.13 × 20,382.23
  4. Step 4: Simplify right side
    28,329.24x = 796,479,225.53
  5. Step 5: Solve for x
    x = 796,479,225.53/28,329.24
  6. Step 6: Final answer
    x = 28,115.09

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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.