Home / 28,351.34-42,478.41-20,016.44

Finding the Fourth Proportional to 28,351.34, 42,478.41 and 20,016.44

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Solution

The fourth proportional to 28,351.34, 42,478.41 and 20,016.44 is: 29,990.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,351.34 : 42,478.41 = 20,016.44 : x
  2. Step 2: Convert to fraction form
    28,351.34/42,478.41 = 20,016.44/x
  3. Step 3: Cross multiply
    28,351.34x = 42,478.41 × 20,016.44
  4. Step 4: Simplify right side
    28,351.34x = 850,266,545.06
  5. Step 5: Solve for x
    x = 850,266,545.06/28,351.34
  6. Step 6: Final answer
    x = 29,990.35

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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.