Home / 19,630.90-27,090.75-11,671.57

Finding the Fourth Proportional to 19,630.90, 27,090.75 and 11,671.57

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Solution

The fourth proportional to 19,630.90, 27,090.75 and 11,671.57 is: 16,106.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,630.90 : 27,090.75 = 11,671.57 : x
  2. Step 2: Convert to fraction form
    19,630.90/27,090.75 = 11,671.57/x
  3. Step 3: Cross multiply
    19,630.90x = 27,090.75 × 11,671.57
  4. Step 4: Simplify right side
    19,630.90x = 316,191,584.98
  5. Step 5: Solve for x
    x = 316,191,584.98/19,630.90
  6. Step 6: Final answer
    x = 16,106.83

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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.