Home / 28,140.67-38,837.79-16,204.51

Finding the Fourth Proportional to 28,140.67, 38,837.79 and 16,204.51

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Solution

The fourth proportional to 28,140.67, 38,837.79 and 16,204.51 is: 22,364.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,140.67 : 38,837.79 = 16,204.51 : x
  2. Step 2: Convert to fraction form
    28,140.67/38,837.79 = 16,204.51/x
  3. Step 3: Cross multiply
    28,140.67x = 38,837.79 × 16,204.51
  4. Step 4: Simplify right side
    28,140.67x = 629,347,356.43
  5. Step 5: Solve for x
    x = 629,347,356.43/28,140.67
  6. Step 6: Final answer
    x = 22,364.33

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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.