Home / 28,536.44-39,395.99-21,363.77

Finding the Fourth Proportional to 28,536.44, 39,395.99 and 21,363.77

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Solution

The fourth proportional to 28,536.44, 39,395.99 and 21,363.77 is: 29,493.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,536.44 : 39,395.99 = 21,363.77 : x
  2. Step 2: Convert to fraction form
    28,536.44/39,395.99 = 21,363.77/x
  3. Step 3: Cross multiply
    28,536.44x = 39,395.99 × 21,363.77
  4. Step 4: Simplify right side
    28,536.44x = 841,647,021.18
  5. Step 5: Solve for x
    x = 841,647,021.18/28,536.44
  6. Step 6: Final answer
    x = 29,493.77

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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.