Home / 28,771.28-39,695.12-16,193.60

Finding the Fourth Proportional to 28,771.28, 39,695.12 and 16,193.60

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Solution

The fourth proportional to 28,771.28, 39,695.12 and 16,193.60 is: 22,341.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,771.28 : 39,695.12 = 16,193.60 : x
  2. Step 2: Convert to fraction form
    28,771.28/39,695.12 = 16,193.60/x
  3. Step 3: Cross multiply
    28,771.28x = 39,695.12 × 16,193.60
  4. Step 4: Simplify right side
    28,771.28x = 642,806,895.23
  5. Step 5: Solve for x
    x = 642,806,895.23/28,771.28
  6. Step 6: Final answer
    x = 22,341.96

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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.