Home / 28,187.61-38,902.32-16,091.07

Finding the Fourth Proportional to 28,187.61, 38,902.32 and 16,091.07

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Solution

The fourth proportional to 28,187.61, 38,902.32 and 16,091.07 is: 22,207.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,187.61 : 38,902.32 = 16,091.07 : x
  2. Step 2: Convert to fraction form
    28,187.61/38,902.32 = 16,091.07/x
  3. Step 3: Cross multiply
    28,187.61x = 38,902.32 × 16,091.07
  4. Step 4: Simplify right side
    28,187.61x = 625,979,954.28
  5. Step 5: Solve for x
    x = 625,979,954.28/28,187.61
  6. Step 6: Final answer
    x = 22,207.63

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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.