Home / 19,641.96-27,105.98-10,689.57

Finding the Fourth Proportional to 19,641.96, 27,105.98 and 10,689.57

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Solution

The fourth proportional to 19,641.96, 27,105.98 and 10,689.57 is: 14,751.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,641.96 : 27,105.98 = 10,689.57 : x
  2. Step 2: Convert to fraction form
    19,641.96/27,105.98 = 10,689.57/x
  3. Step 3: Cross multiply
    19,641.96x = 27,105.98 × 10,689.57
  4. Step 4: Simplify right side
    19,641.96x = 289,751,217.18
  5. Step 5: Solve for x
    x = 289,751,217.18/19,641.96
  6. Step 6: Final answer
    x = 14,751.64

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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.