Home / 19,641.92-27,105.77-10,689.26

Finding the Fourth Proportional to 19,641.92, 27,105.77 and 10,689.26

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Solution

The fourth proportional to 19,641.92, 27,105.77 and 10,689.26 is: 14,751.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,641.92 : 27,105.77 = 10,689.26 : x
  2. Step 2: Convert to fraction form
    19,641.92/27,105.77 = 10,689.26/x
  3. Step 3: Cross multiply
    19,641.92x = 27,105.77 × 10,689.26
  4. Step 4: Simplify right side
    19,641.92x = 289,740,514.22
  5. Step 5: Solve for x
    x = 289,740,514.22/19,641.92
  6. Step 6: Final answer
    x = 14,751.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.