Home / 30,578.40-42,206.94-18,010.44

Finding the Fourth Proportional to 30,578.40, 42,206.94 and 18,010.44

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Solution

The fourth proportional to 30,578.40, 42,206.94 and 18,010.44 is: 24,859.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,578.40 : 42,206.94 = 18,010.44 : x
  2. Step 2: Convert to fraction form
    30,578.40/42,206.94 = 18,010.44/x
  3. Step 3: Cross multiply
    30,578.40x = 42,206.94 × 18,010.44
  4. Step 4: Simplify right side
    30,578.40x = 760,165,560.45
  5. Step 5: Solve for x
    x = 760,165,560.45/30,578.40
  6. Step 6: Final answer
    x = 24,859.56

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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.