Home / 30,474.12-45,716.90-13,835.32

Finding the Fourth Proportional to 30,474.12, 45,716.90 and 13,835.32

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Solution

The fourth proportional to 30,474.12, 45,716.90 and 13,835.32 is: 20,755.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,474.12 : 45,716.90 = 13,835.32 : x
  2. Step 2: Convert to fraction form
    30,474.12/45,716.90 = 13,835.32/x
  3. Step 3: Cross multiply
    30,474.12x = 45,716.90 × 13,835.32
  4. Step 4: Simplify right side
    30,474.12x = 632,507,940.91
  5. Step 5: Solve for x
    x = 632,507,940.91/30,474.12
  6. Step 6: Final answer
    x = 20,755.58

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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.