Home / 19,815.88-27,345.91-11,432.38

Finding the Fourth Proportional to 19,815.88, 27,345.91 and 11,432.38

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Solution

The fourth proportional to 19,815.88, 27,345.91 and 11,432.38 is: 15,776.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,815.88 : 27,345.91 = 11,432.38 : x
  2. Step 2: Convert to fraction form
    19,815.88/27,345.91 = 11,432.38/x
  3. Step 3: Cross multiply
    19,815.88x = 27,345.91 × 11,432.38
  4. Step 4: Simplify right side
    19,815.88x = 312,628,697.84
  5. Step 5: Solve for x
    x = 312,628,697.84/19,815.88
  6. Step 6: Final answer
    x = 15,776.68

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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.