Home / 17,930.90-26,896.35-12,977.30

Finding the Fourth Proportional to 17,930.90, 26,896.35 and 12,977.30

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Solution

The fourth proportional to 17,930.90, 26,896.35 and 12,977.30 is: 19,465.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,930.90 : 26,896.35 = 12,977.30 : x
  2. Step 2: Convert to fraction form
    17,930.90/26,896.35 = 12,977.30/x
  3. Step 3: Cross multiply
    17,930.90x = 26,896.35 × 12,977.30
  4. Step 4: Simplify right side
    17,930.90x = 349,042,002.86
  5. Step 5: Solve for x
    x = 349,042,002.86/17,930.90
  6. Step 6: Final answer
    x = 19,465.95

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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.