Home / 19,628.10-27,089.46-13,342.50

Finding the Fourth Proportional to 19,628.10, 27,089.46 and 13,342.50

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Solution

The fourth proportional to 19,628.10, 27,089.46 and 13,342.50 is: 18,414.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,628.10 : 27,089.46 = 13,342.50 : x
  2. Step 2: Convert to fraction form
    19,628.10/27,089.46 = 13,342.50/x
  3. Step 3: Cross multiply
    19,628.10x = 27,089.46 × 13,342.50
  4. Step 4: Simplify right side
    19,628.10x = 361,441,120.05
  5. Step 5: Solve for x
    x = 361,441,120.05/19,628.10
  6. Step 6: Final answer
    x = 18,414.47

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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.