Home / 30,777.63-42,471.90-17,351.67

Finding the Fourth Proportional to 30,777.63, 42,471.90 and 17,351.67

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Solution

The fourth proportional to 30,777.63, 42,471.90 and 17,351.67 is: 23,944.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,777.63 : 42,471.90 = 17,351.67 : x
  2. Step 2: Convert to fraction form
    30,777.63/42,471.90 = 17,351.67/x
  3. Step 3: Cross multiply
    30,777.63x = 42,471.90 × 17,351.67
  4. Step 4: Simplify right side
    30,777.63x = 736,958,455.87
  5. Step 5: Solve for x
    x = 736,958,455.87/30,777.63
  6. Step 6: Final answer
    x = 23,944.61

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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.