Home / 27,077.80-40,578.30-20,002.60

Finding the Fourth Proportional to 27,077.80, 40,578.30 and 20,002.60

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Solution

The fourth proportional to 27,077.80, 40,578.30 and 20,002.60 is: 29,975.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,077.80 : 40,578.30 = 20,002.60 : x
  2. Step 2: Convert to fraction form
    27,077.80/40,578.30 = 20,002.60/x
  3. Step 3: Cross multiply
    27,077.80x = 40,578.30 × 20,002.60
  4. Step 4: Simplify right side
    27,077.80x = 811,671,503.58
  5. Step 5: Solve for x
    x = 811,671,503.58/27,077.80
  6. Step 6: Final answer
    x = 29,975.53

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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.