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Finding the Fourth Proportional to 18,411.36, 27,477.93 and 17,162.88

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Solution

The fourth proportional to 18,411.36, 27,477.93 and 17,162.88 is: 25,614.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,411.36 : 27,477.93 = 17,162.88 : x
  2. Step 2: Convert to fraction form
    18,411.36/27,477.93 = 17,162.88/x
  3. Step 3: Cross multiply
    18,411.36x = 27,477.93 × 17,162.88
  4. Step 4: Simplify right side
    18,411.36x = 471,600,415.24
  5. Step 5: Solve for x
    x = 471,600,415.24/18,411.36
  6. Step 6: Final answer
    x = 25,614.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.