Home / 26,149.59-39,170.16-12,782.34

Finding the Fourth Proportional to 26,149.59, 39,170.16 and 12,782.34

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Solution

The fourth proportional to 26,149.59, 39,170.16 and 12,782.34 is: 19,147.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,149.59 : 39,170.16 = 12,782.34 : x
  2. Step 2: Convert to fraction form
    26,149.59/39,170.16 = 12,782.34/x
  3. Step 3: Cross multiply
    26,149.59x = 39,170.16 × 12,782.34
  4. Step 4: Simplify right side
    26,149.59x = 500,686,302.97
  5. Step 5: Solve for x
    x = 500,686,302.97/26,149.59
  6. Step 6: Final answer
    x = 19,147.00

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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.