Home / 19,271.21-28,892.79-13,015.71

Finding the Fourth Proportional to 19,271.21, 28,892.79 and 13,015.71

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Solution

The fourth proportional to 19,271.21, 28,892.79 and 13,015.71 is: 19,514.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,271.21 : 28,892.79 = 13,015.71 : x
  2. Step 2: Convert to fraction form
    19,271.21/28,892.79 = 13,015.71/x
  3. Step 3: Cross multiply
    19,271.21x = 28,892.79 × 13,015.71
  4. Step 4: Simplify right side
    19,271.21x = 376,060,175.73
  5. Step 5: Solve for x
    x = 376,060,175.73/19,271.21
  6. Step 6: Final answer
    x = 19,514.10

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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.