Home / 19,898.56-27,449.10-12,342.28

Finding the Fourth Proportional to 19,898.56, 27,449.10 and 12,342.28

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Solution

The fourth proportional to 19,898.56, 27,449.10 and 12,342.28 is: 17,025.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,898.56 : 27,449.10 = 12,342.28 : x
  2. Step 2: Convert to fraction form
    19,898.56/27,449.10 = 12,342.28/x
  3. Step 3: Cross multiply
    19,898.56x = 27,449.10 × 12,342.28
  4. Step 4: Simplify right side
    19,898.56x = 338,784,477.95
  5. Step 5: Solve for x
    x = 338,784,477.95/19,898.56
  6. Step 6: Final answer
    x = 17,025.58

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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.