Home / 19,530.27-26,944.53-12,819.63

Finding the Fourth Proportional to 19,530.27, 26,944.53 and 12,819.63

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Solution

The fourth proportional to 19,530.27, 26,944.53 and 12,819.63 is: 17,686.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,530.27 : 26,944.53 = 12,819.63 : x
  2. Step 2: Convert to fraction form
    19,530.27/26,944.53 = 12,819.63/x
  3. Step 3: Cross multiply
    19,530.27x = 26,944.53 × 12,819.63
  4. Step 4: Simplify right side
    19,530.27x = 345,418,905.12
  5. Step 5: Solve for x
    x = 345,418,905.12/19,530.27
  6. Step 6: Final answer
    x = 17,686.34

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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.