Home / 20,634.69-28,475.59-11,681.96

Finding the Fourth Proportional to 20,634.69, 28,475.59 and 11,681.96

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Solution

The fourth proportional to 20,634.69, 28,475.59 and 11,681.96 is: 16,120.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,634.69 : 28,475.59 = 11,681.96 : x
  2. Step 2: Convert to fraction form
    20,634.69/28,475.59 = 11,681.96/x
  3. Step 3: Cross multiply
    20,634.69x = 28,475.59 × 11,681.96
  4. Step 4: Simplify right side
    20,634.69x = 332,650,502.57
  5. Step 5: Solve for x
    x = 332,650,502.57/20,634.69
  6. Step 6: Final answer
    x = 16,120.94

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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.