Home / 28,763.14-39,693.10-16,188.16

Finding the Fourth Proportional to 28,763.14, 39,693.10 and 16,188.16

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Solution

The fourth proportional to 28,763.14, 39,693.10 and 16,188.16 is: 22,339.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,763.14 : 39,693.10 = 16,188.16 : x
  2. Step 2: Convert to fraction form
    28,763.14/39,693.10 = 16,188.16/x
  3. Step 3: Cross multiply
    28,763.14x = 39,693.10 × 16,188.16
  4. Step 4: Simplify right side
    28,763.14x = 642,558,253.70
  5. Step 5: Solve for x
    x = 642,558,253.70/28,763.14
  6. Step 6: Final answer
    x = 22,339.64

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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.