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Finding the Fourth Proportional to 18,332.98, 27,415.41 and 13,656.22

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Solution

The fourth proportional to 18,332.98, 27,415.41 and 13,656.22 is: 20,421.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,332.98 : 27,415.41 = 13,656.22 : x
  2. Step 2: Convert to fraction form
    18,332.98/27,415.41 = 13,656.22/x
  3. Step 3: Cross multiply
    18,332.98x = 27,415.41 × 13,656.22
  4. Step 4: Simplify right side
    18,332.98x = 374,390,904.52
  5. Step 5: Solve for x
    x = 374,390,904.52/18,332.98
  6. Step 6: Final answer
    x = 20,421.71

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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.