Home / 28,827.62-39,800.28-22,100.78

Finding the Fourth Proportional to 28,827.62, 39,800.28 and 22,100.78

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Solution

The fourth proportional to 28,827.62, 39,800.28 and 22,100.78 is: 30,513.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,827.62 : 39,800.28 = 22,100.78 : x
  2. Step 2: Convert to fraction form
    28,827.62/39,800.28 = 22,100.78/x
  3. Step 3: Cross multiply
    28,827.62x = 39,800.28 × 22,100.78
  4. Step 4: Simplify right side
    28,827.62x = 879,617,232.22
  5. Step 5: Solve for x
    x = 879,617,232.22/28,827.62
  6. Step 6: Final answer
    x = 30,513.00

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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.