Home / 33,421.80-50,108.40-13,690.20

Finding the Fourth Proportional to 33,421.80, 50,108.40 and 13,690.20

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Solution

The fourth proportional to 33,421.80, 50,108.40 and 13,690.20 is: 20,525.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,421.80 : 50,108.40 = 13,690.20 : x
  2. Step 2: Convert to fraction form
    33,421.80/50,108.40 = 13,690.20/x
  3. Step 3: Cross multiply
    33,421.80x = 50,108.40 × 13,690.20
  4. Step 4: Simplify right side
    33,421.80x = 685,994,017.68
  5. Step 5: Solve for x
    x = 685,994,017.68/33,421.80
  6. Step 6: Final answer
    x = 20,525.35

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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.