Home / 38,407.77-57,611.65-12,114.56

Finding the Fourth Proportional to 38,407.77, 57,611.65 and 12,114.56

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Solution

The fourth proportional to 38,407.77, 57,611.65 and 12,114.56 is: 18,171.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,407.77 : 57,611.65 = 12,114.56 : x
  2. Step 2: Convert to fraction form
    38,407.77/57,611.65 = 12,114.56/x
  3. Step 3: Cross multiply
    38,407.77x = 57,611.65 × 12,114.56
  4. Step 4: Simplify right side
    38,407.77x = 697,939,799.12
  5. Step 5: Solve for x
    x = 697,939,799.12/38,407.77
  6. Step 6: Final answer
    x = 18,171.84

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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.