Home / 19,072.36-28,737.61-15,857.20

Finding the Fourth Proportional to 19,072.36, 28,737.61 and 15,857.20

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Solution

The fourth proportional to 19,072.36, 28,737.61 and 15,857.20 is: 23,893.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,072.36 : 28,737.61 = 15,857.20 : x
  2. Step 2: Convert to fraction form
    19,072.36/28,737.61 = 15,857.20/x
  3. Step 3: Cross multiply
    19,072.36x = 28,737.61 × 15,857.20
  4. Step 4: Simplify right side
    19,072.36x = 455,698,029.29
  5. Step 5: Solve for x
    x = 455,698,029.29/19,072.36
  6. Step 6: Final answer
    x = 23,893.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.