Home / 20,289.99-30,392.66-16,319.81

Finding the Fourth Proportional to 20,289.99, 30,392.66 and 16,319.81

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Solution

The fourth proportional to 20,289.99, 30,392.66 and 16,319.81 is: 24,445.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,289.99 : 30,392.66 = 16,319.81 : x
  2. Step 2: Convert to fraction form
    20,289.99/30,392.66 = 16,319.81/x
  3. Step 3: Cross multiply
    20,289.99x = 30,392.66 × 16,319.81
  4. Step 4: Simplify right side
    20,289.99x = 496,002,284.63
  5. Step 5: Solve for x
    x = 496,002,284.63/20,289.99
  6. Step 6: Final answer
    x = 24,445.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.