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Finding the Fourth Proportional to 18,392.40, 27,606.42 and 17,393.40

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Solution

The fourth proportional to 18,392.40, 27,606.42 and 17,393.40 is: 26,106.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,392.40 : 27,606.42 = 17,393.40 : x
  2. Step 2: Convert to fraction form
    18,392.40/27,606.42 = 17,393.40/x
  3. Step 3: Cross multiply
    18,392.40x = 27,606.42 × 17,393.40
  4. Step 4: Simplify right side
    18,392.40x = 480,169,505.63
  5. Step 5: Solve for x
    x = 480,169,505.63/18,392.40
  6. Step 6: Final answer
    x = 26,106.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.