Home / 28,844.88-39,841.28-20,874.48

Finding the Fourth Proportional to 28,844.88, 39,841.28 and 20,874.48

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Solution

The fourth proportional to 28,844.88, 39,841.28 and 20,874.48 is: 28,832.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,844.88 : 39,841.28 = 20,874.48 : x
  2. Step 2: Convert to fraction form
    28,844.88/39,841.28 = 20,874.48/x
  3. Step 3: Cross multiply
    28,844.88x = 39,841.28 × 20,874.48
  4. Step 4: Simplify right side
    28,844.88x = 831,666,002.53
  5. Step 5: Solve for x
    x = 831,666,002.53/28,844.88
  6. Step 6: Final answer
    x = 28,832.36

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1.5x scale

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.