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Finding the Fourth Proportional to 18,323.52, 27,484.80 and 4,472.40

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Solution

The fourth proportional to 18,323.52, 27,484.80 and 4,472.40 is: 6,708.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,323.52 : 27,484.80 = 4,472.40 : x
  2. Step 2: Convert to fraction form
    18,323.52/27,484.80 = 4,472.40/x
  3. Step 3: Cross multiply
    18,323.52x = 27,484.80 × 4,472.40
  4. Step 4: Simplify right side
    18,323.52x = 122,923,019.52
  5. Step 5: Solve for x
    x = 122,923,019.52/18,323.52
  6. Step 6: Final answer
    x = 6,708.48

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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.