Home / 30,993.86-42,771.68-16,846.70

Finding the Fourth Proportional to 30,993.86, 42,771.68 and 16,846.70

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Solution

The fourth proportional to 30,993.86, 42,771.68 and 16,846.70 is: 23,248.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,993.86 : 42,771.68 = 16,846.70 : x
  2. Step 2: Convert to fraction form
    30,993.86/42,771.68 = 16,846.70/x
  3. Step 3: Cross multiply
    30,993.86x = 42,771.68 × 16,846.70
  4. Step 4: Simplify right side
    30,993.86x = 720,561,363.36
  5. Step 5: Solve for x
    x = 720,561,363.36/30,993.86
  6. Step 6: Final answer
    x = 23,248.52

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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.