Home / 30,390.99-41,941.67-16,964.86

Finding the Fourth Proportional to 30,390.99, 41,941.67 and 16,964.86

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Solution

The fourth proportional to 30,390.99, 41,941.67 and 16,964.86 is: 23,412.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,390.99 : 41,941.67 = 16,964.86 : x
  2. Step 2: Convert to fraction form
    30,390.99/41,941.67 = 16,964.86/x
  3. Step 3: Cross multiply
    30,390.99x = 41,941.67 × 16,964.86
  4. Step 4: Simplify right side
    30,390.99x = 711,534,559.72
  5. Step 5: Solve for x
    x = 711,534,559.72/30,390.99
  6. Step 6: Final answer
    x = 23,412.68

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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.