Home / 30,205.20-41,681.40-16,775.67

Finding the Fourth Proportional to 30,205.20, 41,681.40 and 16,775.67

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Solution

The fourth proportional to 30,205.20, 41,681.40 and 16,775.67 is: 23,149.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,205.20 : 41,681.40 = 16,775.67 : x
  2. Step 2: Convert to fraction form
    30,205.20/41,681.40 = 16,775.67/x
  3. Step 3: Cross multiply
    30,205.20x = 41,681.40 × 16,775.67
  4. Step 4: Simplify right side
    30,205.20x = 699,233,411.54
  5. Step 5: Solve for x
    x = 699,233,411.54/30,205.20
  6. Step 6: Final answer
    x = 23,149.44

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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.