Home / 30,815.18-42,524.82-17,386.44

Finding the Fourth Proportional to 30,815.18, 42,524.82 and 17,386.44

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Solution

The fourth proportional to 30,815.18, 42,524.82 and 17,386.44 is: 23,993.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,815.18 : 42,524.82 = 17,386.44 : x
  2. Step 2: Convert to fraction form
    30,815.18/42,524.82 = 17,386.44/x
  3. Step 3: Cross multiply
    30,815.18x = 42,524.82 × 17,386.44
  4. Step 4: Simplify right side
    30,815.18x = 739,355,231.44
  5. Step 5: Solve for x
    x = 739,355,231.44/30,815.18
  6. Step 6: Final answer
    x = 23,993.21

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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.