Home / 19,083.58-28,472.26-16,978.58

Finding the Fourth Proportional to 19,083.58, 28,472.26 and 16,978.58

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Solution

The fourth proportional to 19,083.58, 28,472.26 and 16,978.58 is: 25,331.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,083.58 : 28,472.26 = 16,978.58 : x
  2. Step 2: Convert to fraction form
    19,083.58/28,472.26 = 16,978.58/x
  3. Step 3: Cross multiply
    19,083.58x = 28,472.26 × 16,978.58
  4. Step 4: Simplify right side
    19,083.58x = 483,418,544.19
  5. Step 5: Solve for x
    x = 483,418,544.19/19,083.58
  6. Step 6: Final answer
    x = 25,331.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.