Home / 17,790.21-26,729.10-13,394.34

Finding the Fourth Proportional to 17,790.21, 26,729.10 and 13,394.34

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Solution

The fourth proportional to 17,790.21, 26,729.10 and 13,394.34 is: 20,124.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,790.21 : 26,729.10 = 13,394.34 : x
  2. Step 2: Convert to fraction form
    17,790.21/26,729.10 = 13,394.34/x
  3. Step 3: Cross multiply
    17,790.21x = 26,729.10 × 13,394.34
  4. Step 4: Simplify right side
    17,790.21x = 358,018,653.29
  5. Step 5: Solve for x
    x = 358,018,653.29/17,790.21
  6. Step 6: Final answer
    x = 20,124.48

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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.