Home / 19,947.06-27,518.13-13,233.78

Finding the Fourth Proportional to 19,947.06, 27,518.13 and 13,233.78

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Solution

The fourth proportional to 19,947.06, 27,518.13 and 13,233.78 is: 18,256.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,947.06 : 27,518.13 = 13,233.78 : x
  2. Step 2: Convert to fraction form
    19,947.06/27,518.13 = 13,233.78/x
  3. Step 3: Cross multiply
    19,947.06x = 27,518.13 × 13,233.78
  4. Step 4: Simplify right side
    19,947.06x = 364,168,878.43
  5. Step 5: Solve for x
    x = 364,168,878.43/19,947.06
  6. Step 6: Final answer
    x = 18,256.77

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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.