Home / 19,140.66-28,637.10-19,091.43

Finding the Fourth Proportional to 19,140.66, 28,637.10 and 19,091.43

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Solution

The fourth proportional to 19,140.66, 28,637.10 and 19,091.43 is: 28,563.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,140.66 : 28,637.10 = 19,091.43 : x
  2. Step 2: Convert to fraction form
    19,140.66/28,637.10 = 19,091.43/x
  3. Step 3: Cross multiply
    19,140.66x = 28,637.10 × 19,091.43
  4. Step 4: Simplify right side
    19,140.66x = 546,723,190.05
  5. Step 5: Solve for x
    x = 546,723,190.05/19,140.66
  6. Step 6: Final answer
    x = 28,563.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.