Home / 26,085.68-39,128.13-18,073.05

Finding the Fourth Proportional to 26,085.68, 39,128.13 and 18,073.05

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Solution

The fourth proportional to 26,085.68, 39,128.13 and 18,073.05 is: 27,109.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,085.68 : 39,128.13 = 18,073.05 : x
  2. Step 2: Convert to fraction form
    26,085.68/39,128.13 = 18,073.05/x
  3. Step 3: Cross multiply
    26,085.68x = 39,128.13 × 18,073.05
  4. Step 4: Simplify right side
    26,085.68x = 707,164,649.90
  5. Step 5: Solve for x
    x = 707,164,649.90/26,085.68
  6. Step 6: Final answer
    x = 27,109.31

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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.