Home / 30,212.40-41,688.48-16,783.44

Finding the Fourth Proportional to 30,212.40, 41,688.48 and 16,783.44

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Solution

The fourth proportional to 30,212.40, 41,688.48 and 16,783.44 is: 23,158.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,212.40 : 41,688.48 = 16,783.44 : x
  2. Step 2: Convert to fraction form
    30,212.40/41,688.48 = 16,783.44/x
  3. Step 3: Cross multiply
    30,212.40x = 41,688.48 × 16,783.44
  4. Step 4: Simplify right side
    30,212.40x = 699,676,102.77
  5. Step 5: Solve for x
    x = 699,676,102.77/30,212.40
  6. Step 6: Final answer
    x = 23,158.57

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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.