Home / 28,684.17-39,583.91-15,763.61

Finding the Fourth Proportional to 28,684.17, 39,583.91 and 15,763.61

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Solution

The fourth proportional to 28,684.17, 39,583.91 and 15,763.61 is: 21,753.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,684.17 : 39,583.91 = 15,763.61 : x
  2. Step 2: Convert to fraction form
    28,684.17/39,583.91 = 15,763.61/x
  3. Step 3: Cross multiply
    28,684.17x = 39,583.91 × 15,763.61
  4. Step 4: Simplify right side
    28,684.17x = 623,985,161.00
  5. Step 5: Solve for x
    x = 623,985,161.00/28,684.17
  6. Step 6: Final answer
    x = 21,753.64

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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.