Home / 30,611.42-45,899.88-10,611.53

Finding the Fourth Proportional to 30,611.42, 45,899.88 and 10,611.53

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Solution

The fourth proportional to 30,611.42, 45,899.88 and 10,611.53 is: 15,911.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,611.42 : 45,899.88 = 10,611.53 : x
  2. Step 2: Convert to fraction form
    30,611.42/45,899.88 = 10,611.53/x
  3. Step 3: Cross multiply
    30,611.42x = 45,899.88 × 10,611.53
  4. Step 4: Simplify right side
    30,611.42x = 487,067,724.12
  5. Step 5: Solve for x
    x = 487,067,724.12/30,611.42
  6. Step 6: Final answer
    x = 15,911.31

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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.