Home / 19,705.44-27,215.52-13,406.88

Finding the Fourth Proportional to 19,705.44, 27,215.52 and 13,406.88

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Solution

The fourth proportional to 19,705.44, 27,215.52 and 13,406.88 is: 18,516.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,705.44 : 27,215.52 = 13,406.88 : x
  2. Step 2: Convert to fraction form
    19,705.44/27,215.52 = 13,406.88/x
  3. Step 3: Cross multiply
    19,705.44x = 27,215.52 × 13,406.88
  4. Step 4: Simplify right side
    19,705.44x = 364,875,210.78
  5. Step 5: Solve for x
    x = 364,875,210.78/19,705.44
  6. Step 6: Final answer
    x = 18,516.47

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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.