Home / 26,031.39-39,042.17-12,690.99

Finding the Fourth Proportional to 26,031.39, 39,042.17 and 12,690.99

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Solution

The fourth proportional to 26,031.39, 39,042.17 and 12,690.99 is: 19,034.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,031.39 : 39,042.17 = 12,690.99 : x
  2. Step 2: Convert to fraction form
    26,031.39/39,042.17 = 12,690.99/x
  3. Step 3: Cross multiply
    26,031.39x = 39,042.17 × 12,690.99
  4. Step 4: Simplify right side
    26,031.39x = 495,483,725.59
  5. Step 5: Solve for x
    x = 495,483,725.59/26,031.39
  6. Step 6: Final answer
    x = 19,034.09

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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.