Home / 22,091.55-30,486.65-12,020.28

Finding the Fourth Proportional to 22,091.55, 30,486.65 and 12,020.28

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Solution

The fourth proportional to 22,091.55, 30,486.65 and 12,020.28 is: 16,588.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,091.55 : 30,486.65 = 12,020.28 : x
  2. Step 2: Convert to fraction form
    22,091.55/30,486.65 = 12,020.28/x
  3. Step 3: Cross multiply
    22,091.55x = 30,486.65 × 12,020.28
  4. Step 4: Simplify right side
    22,091.55x = 366,458,009.16
  5. Step 5: Solve for x
    x = 366,458,009.16/22,091.55
  6. Step 6: Final answer
    x = 16,588.15

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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.