Home / 30,783.99-46,155.32-15,800.21

Finding the Fourth Proportional to 30,783.99, 46,155.32 and 15,800.21

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Solution

The fourth proportional to 30,783.99, 46,155.32 and 15,800.21 is: 23,689.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,783.99 : 46,155.32 = 15,800.21 : x
  2. Step 2: Convert to fraction form
    30,783.99/46,155.32 = 15,800.21/x
  3. Step 3: Cross multiply
    30,783.99x = 46,155.32 × 15,800.21
  4. Step 4: Simplify right side
    30,783.99x = 729,263,748.62
  5. Step 5: Solve for x
    x = 729,263,748.62/30,783.99
  6. Step 6: Final answer
    x = 23,689.71

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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.