Home / 19,071.36-28,736.10-15,856.20

Finding the Fourth Proportional to 19,071.36, 28,736.10 and 15,856.20

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Solution

The fourth proportional to 19,071.36, 28,736.10 and 15,856.20 is: 23,891.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,071.36 : 28,736.10 = 15,856.20 : x
  2. Step 2: Convert to fraction form
    19,071.36/28,736.10 = 15,856.20/x
  3. Step 3: Cross multiply
    19,071.36x = 28,736.10 × 15,856.20
  4. Step 4: Simplify right side
    19,071.36x = 455,645,348.82
  5. Step 5: Solve for x
    x = 455,645,348.82/19,071.36
  6. Step 6: Final answer
    x = 23,891.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.