Home / 28,645.31-39,530.81-16,070.33

Finding the Fourth Proportional to 28,645.31, 39,530.81 and 16,070.33

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Solution

The fourth proportional to 28,645.31, 39,530.81 and 16,070.33 is: 22,177.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,645.31 : 39,530.81 = 16,070.33 : x
  2. Step 2: Convert to fraction form
    28,645.31/39,530.81 = 16,070.33/x
  3. Step 3: Cross multiply
    28,645.31x = 39,530.81 × 16,070.33
  4. Step 4: Simplify right side
    28,645.31x = 635,273,180.34
  5. Step 5: Solve for x
    x = 635,273,180.34/28,645.31
  6. Step 6: Final answer
    x = 22,177.21

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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.