Home / 30,611.09-45,900.69-10,886.78

Finding the Fourth Proportional to 30,611.09, 45,900.69 and 10,886.78

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Solution

The fourth proportional to 30,611.09, 45,900.69 and 10,886.78 is: 16,324.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,611.09 : 45,900.69 = 10,886.78 : x
  2. Step 2: Convert to fraction form
    30,611.09/45,900.69 = 10,886.78/x
  3. Step 3: Cross multiply
    30,611.09x = 45,900.69 × 10,886.78
  4. Step 4: Simplify right side
    30,611.09x = 499,710,713.88
  5. Step 5: Solve for x
    x = 499,710,713.88/30,611.09
  6. Step 6: Final answer
    x = 16,324.50

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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.