Home / 19,431.90-26,815.23-11,476.70

Finding the Fourth Proportional to 19,431.90, 26,815.23 and 11,476.70

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Solution

The fourth proportional to 19,431.90, 26,815.23 and 11,476.70 is: 15,837.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,431.90 : 26,815.23 = 11,476.70 : x
  2. Step 2: Convert to fraction form
    19,431.90/26,815.23 = 11,476.70/x
  3. Step 3: Cross multiply
    19,431.90x = 26,815.23 × 11,476.70
  4. Step 4: Simplify right side
    19,431.90x = 307,750,350.14
  5. Step 5: Solve for x
    x = 307,750,350.14/19,431.90
  6. Step 6: Final answer
    x = 15,837.38

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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.