Home / 34,878.51-48,136.50-20,731.41

Finding the Fourth Proportional to 34,878.51, 48,136.50 and 20,731.41

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Solution

The fourth proportional to 34,878.51, 48,136.50 and 20,731.41 is: 28,611.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,878.51 : 48,136.50 = 20,731.41 : x
  2. Step 2: Convert to fraction form
    34,878.51/48,136.50 = 20,731.41/x
  3. Step 3: Cross multiply
    34,878.51x = 48,136.50 × 20,731.41
  4. Step 4: Simplify right side
    34,878.51x = 997,937,517.47
  5. Step 5: Solve for x
    x = 997,937,517.47/34,878.51
  6. Step 6: Final answer
    x = 28,611.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.