Home / 28,928.18-39,920.37-16,352.66

Finding the Fourth Proportional to 28,928.18, 39,920.37 and 16,352.66

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Solution

The fourth proportional to 28,928.18, 39,920.37 and 16,352.66 is: 22,566.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,928.18 : 39,920.37 = 16,352.66 : x
  2. Step 2: Convert to fraction form
    28,928.18/39,920.37 = 16,352.66/x
  3. Step 3: Cross multiply
    28,928.18x = 39,920.37 × 16,352.66
  4. Step 4: Simplify right side
    28,928.18x = 652,804,237.68
  5. Step 5: Solve for x
    x = 652,804,237.68/28,928.18
  6. Step 6: Final answer
    x = 22,566.38

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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.