Home / 28,723.14-39,664.08-21,637.26

Finding the Fourth Proportional to 28,723.14, 39,664.08 and 21,637.26

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Solution

The fourth proportional to 28,723.14, 39,664.08 and 21,637.26 is: 29,879.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,723.14 : 39,664.08 = 21,637.26 : x
  2. Step 2: Convert to fraction form
    28,723.14/39,664.08 = 21,637.26/x
  3. Step 3: Cross multiply
    28,723.14x = 39,664.08 × 21,637.26
  4. Step 4: Simplify right side
    28,723.14x = 858,222,011.62
  5. Step 5: Solve for x
    x = 858,222,011.62/28,723.14
  6. Step 6: Final answer
    x = 29,879.12

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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.