Home / 20,703.33-28,570.05-12,091.14

Finding the Fourth Proportional to 20,703.33, 28,570.05 and 12,091.14

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Solution

The fourth proportional to 20,703.33, 28,570.05 and 12,091.14 is: 16,685.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,703.33 : 28,570.05 = 12,091.14 : x
  2. Step 2: Convert to fraction form
    20,703.33/28,570.05 = 12,091.14/x
  3. Step 3: Cross multiply
    20,703.33x = 28,570.05 × 12,091.14
  4. Step 4: Simplify right side
    20,703.33x = 345,444,474.36
  5. Step 5: Solve for x
    x = 345,444,474.36/20,703.33
  6. Step 6: Final answer
    x = 16,685.45

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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.