Home / 33,985.20-50,977.80-10,611.72

Finding the Fourth Proportional to 33,985.20, 50,977.80 and 10,611.72

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Solution

The fourth proportional to 33,985.20, 50,977.80 and 10,611.72 is: 15,917.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,985.20 : 50,977.80 = 10,611.72 : x
  2. Step 2: Convert to fraction form
    33,985.20/50,977.80 = 10,611.72/x
  3. Step 3: Cross multiply
    33,985.20x = 50,977.80 × 10,611.72
  4. Step 4: Simplify right side
    33,985.20x = 540,962,139.82
  5. Step 5: Solve for x
    x = 540,962,139.82/33,985.20
  6. Step 6: Final answer
    x = 15,917.58

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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.