Home / 47,079.92-70,611.36-18,998.80

Finding the Fourth Proportional to 47,079.92, 70,611.36 and 18,998.80

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Solution

The fourth proportional to 47,079.92, 70,611.36 and 18,998.80 is: 28,494.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,079.92 : 70,611.36 = 18,998.80 : x
  2. Step 2: Convert to fraction form
    47,079.92/70,611.36 = 18,998.80/x
  3. Step 3: Cross multiply
    47,079.92x = 70,611.36 × 18,998.80
  4. Step 4: Simplify right side
    47,079.92x = 1,341,531,106.37
  5. Step 5: Solve for x
    x = 1,341,531,106.37/47,079.92
  6. Step 6: Final answer
    x = 28,494.76

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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.