Home / 28,821.19-39,773.32-16,075.20

Finding the Fourth Proportional to 28,821.19, 39,773.32 and 16,075.20

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Solution

The fourth proportional to 28,821.19, 39,773.32 and 16,075.20 is: 22,183.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,821.19 : 39,773.32 = 16,075.20 : x
  2. Step 2: Convert to fraction form
    28,821.19/39,773.32 = 16,075.20/x
  3. Step 3: Cross multiply
    28,821.19x = 39,773.32 × 16,075.20
  4. Step 4: Simplify right side
    28,821.19x = 639,363,993.29
  5. Step 5: Solve for x
    x = 639,363,993.29/28,821.19
  6. Step 6: Final answer
    x = 22,183.82

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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.