Home / 19,043.10-28,522.89-12,356.10

Finding the Fourth Proportional to 19,043.10, 28,522.89 and 12,356.10

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Solution

The fourth proportional to 19,043.10, 28,522.89 and 12,356.10 is: 18,507.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,043.10 : 28,522.89 = 12,356.10 : x
  2. Step 2: Convert to fraction form
    19,043.10/28,522.89 = 12,356.10/x
  3. Step 3: Cross multiply
    19,043.10x = 28,522.89 × 12,356.10
  4. Step 4: Simplify right side
    19,043.10x = 352,431,681.13
  5. Step 5: Solve for x
    x = 352,431,681.13/19,043.10
  6. Step 6: Final answer
    x = 18,507.05

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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.