Home / 30,999.30-46,520.55-19,932.90

Finding the Fourth Proportional to 30,999.30, 46,520.55 and 19,932.90

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Solution

The fourth proportional to 30,999.30, 46,520.55 and 19,932.90 is: 29,913.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,999.30 : 46,520.55 = 19,932.90 : x
  2. Step 2: Convert to fraction form
    30,999.30/46,520.55 = 19,932.90/x
  3. Step 3: Cross multiply
    30,999.30x = 46,520.55 × 19,932.90
  4. Step 4: Simplify right side
    30,999.30x = 927,289,471.10
  5. Step 5: Solve for x
    x = 927,289,471.10/30,999.30
  6. Step 6: Final answer
    x = 29,913.24

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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.