Home / 28,146.29-38,829.78-16,207.09

Finding the Fourth Proportional to 28,146.29, 38,829.78 and 16,207.09

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Solution

The fourth proportional to 28,146.29, 38,829.78 and 16,207.09 is: 22,358.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,146.29 : 38,829.78 = 16,207.09 : x
  2. Step 2: Convert to fraction form
    28,146.29/38,829.78 = 16,207.09/x
  3. Step 3: Cross multiply
    28,146.29x = 38,829.78 × 16,207.09
  4. Step 4: Simplify right side
    28,146.29x = 629,317,642.07
  5. Step 5: Solve for x
    x = 629,317,642.07/28,146.29
  6. Step 6: Final answer
    x = 22,358.82

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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.