Home / 28,732.05-39,627.74-19,662.77

Finding the Fourth Proportional to 28,732.05, 39,627.74 and 19,662.77

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Solution

The fourth proportional to 28,732.05, 39,627.74 and 19,662.77 is: 27,119.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,732.05 : 39,627.74 = 19,662.77 : x
  2. Step 2: Convert to fraction form
    28,732.05/39,627.74 = 19,662.77/x
  3. Step 3: Cross multiply
    28,732.05x = 39,627.74 × 19,662.77
  4. Step 4: Simplify right side
    28,732.05x = 779,191,137.24
  5. Step 5: Solve for x
    x = 779,191,137.24/28,732.05
  6. Step 6: Final answer
    x = 27,119.23

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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.