Home / 19,804.50-27,330.21-11,425.86

Finding the Fourth Proportional to 19,804.50, 27,330.21 and 11,425.86

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Solution

The fourth proportional to 19,804.50, 27,330.21 and 11,425.86 is: 15,767.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,804.50 : 27,330.21 = 11,425.86 : x
  2. Step 2: Convert to fraction form
    19,804.50/27,330.21 = 11,425.86/x
  3. Step 3: Cross multiply
    19,804.50x = 27,330.21 × 11,425.86
  4. Step 4: Simplify right side
    19,804.50x = 312,271,153.23
  5. Step 5: Solve for x
    x = 312,271,153.23/19,804.50
  6. Step 6: Final answer
    x = 15,767.69

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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.