Home / 19,307.80-28,912.02-13,376.26

Finding the Fourth Proportional to 19,307.80, 28,912.02 and 13,376.26

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Solution

The fourth proportional to 19,307.80, 28,912.02 and 13,376.26 is: 20,029.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,307.80 : 28,912.02 = 13,376.26 : x
  2. Step 2: Convert to fraction form
    19,307.80/28,912.02 = 13,376.26/x
  3. Step 3: Cross multiply
    19,307.80x = 28,912.02 × 13,376.26
  4. Step 4: Simplify right side
    19,307.80x = 386,734,696.65
  5. Step 5: Solve for x
    x = 386,734,696.65/19,307.80
  6. Step 6: Final answer
    x = 20,029.97

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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.