Home / 28,763.52-39,693.38-16,188.28

Finding the Fourth Proportional to 28,763.52, 39,693.38 and 16,188.28

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Solution

The fourth proportional to 28,763.52, 39,693.38 and 16,188.28 is: 22,339.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,763.52 : 39,693.38 = 16,188.28 : x
  2. Step 2: Convert to fraction form
    28,763.52/39,693.38 = 16,188.28/x
  3. Step 3: Cross multiply
    28,763.52x = 39,693.38 × 16,188.28
  4. Step 4: Simplify right side
    28,763.52x = 642,567,549.59
  5. Step 5: Solve for x
    x = 642,567,549.59/28,763.52
  6. Step 6: Final answer
    x = 22,339.67

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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.