Home / 28,239.23-38,966.11-16,906.02

Finding the Fourth Proportional to 28,239.23, 38,966.11 and 16,906.02

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Solution

The fourth proportional to 28,239.23, 38,966.11 and 16,906.02 is: 23,327.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,239.23 : 38,966.11 = 16,906.02 : x
  2. Step 2: Convert to fraction form
    28,239.23/38,966.11 = 16,906.02/x
  3. Step 3: Cross multiply
    28,239.23x = 38,966.11 × 16,906.02
  4. Step 4: Simplify right side
    28,239.23x = 658,761,741.69
  5. Step 5: Solve for x
    x = 658,761,741.69/28,239.23
  6. Step 6: Final answer
    x = 23,327.89

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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.