Home / 26,029.49-39,039.31-12,689.09

Finding the Fourth Proportional to 26,029.49, 39,039.31 and 12,689.09

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Solution

The fourth proportional to 26,029.49, 39,039.31 and 12,689.09 is: 19,031.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,029.49 : 39,039.31 = 12,689.09 : x
  2. Step 2: Convert to fraction form
    26,029.49/39,039.31 = 12,689.09/x
  3. Step 3: Cross multiply
    26,029.49x = 39,039.31 × 12,689.09
  4. Step 4: Simplify right side
    26,029.49x = 495,373,352.28
  5. Step 5: Solve for x
    x = 495,373,352.28/26,029.49
  6. Step 6: Final answer
    x = 19,031.24

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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.