Home / 19,140.10-28,645.35-16,807.30

Finding the Fourth Proportional to 19,140.10, 28,645.35 and 16,807.30

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Solution

The fourth proportional to 19,140.10, 28,645.35 and 16,807.30 is: 25,154.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,140.10 : 28,645.35 = 16,807.30 : x
  2. Step 2: Convert to fraction form
    19,140.10/28,645.35 = 16,807.30/x
  3. Step 3: Cross multiply
    19,140.10x = 28,645.35 × 16,807.30
  4. Step 4: Simplify right side
    19,140.10x = 481,450,991.06
  5. Step 5: Solve for x
    x = 481,450,991.06/19,140.10
  6. Step 6: Final answer
    x = 25,154.05

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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.