Home / 30,611.77-45,917.55-17,278.72

Finding the Fourth Proportional to 30,611.77, 45,917.55 and 17,278.72

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Solution

The fourth proportional to 30,611.77, 45,917.55 and 17,278.72 is: 25,918.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,611.77 : 45,917.55 = 17,278.72 : x
  2. Step 2: Convert to fraction form
    30,611.77/45,917.55 = 17,278.72/x
  3. Step 3: Cross multiply
    30,611.77x = 45,917.55 × 17,278.72
  4. Step 4: Simplify right side
    30,611.77x = 793,396,374.74
  5. Step 5: Solve for x
    x = 793,396,374.74/30,611.77
  6. Step 6: Final answer
    x = 25,918.02

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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.