Home / 28,645.68-39,531.72-16,071.36

Finding the Fourth Proportional to 28,645.68, 39,531.72 and 16,071.36

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Solution

The fourth proportional to 28,645.68, 39,531.72 and 16,071.36 is: 22,178.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,645.68 : 39,531.72 = 16,071.36 : x
  2. Step 2: Convert to fraction form
    28,645.68/39,531.72 = 16,071.36/x
  3. Step 3: Cross multiply
    28,645.68x = 39,531.72 × 16,071.36
  4. Step 4: Simplify right side
    28,645.68x = 635,328,503.54
  5. Step 5: Solve for x
    x = 635,328,503.54/28,645.68
  6. Step 6: Final answer
    x = 22,178.86

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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.