Home / 20,210.24-30,149.60-18,796.16

Finding the Fourth Proportional to 20,210.24, 30,149.60 and 18,796.16

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Solution

The fourth proportional to 20,210.24, 30,149.60 and 18,796.16 is: 28,040.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,210.24 : 30,149.60 = 18,796.16 : x
  2. Step 2: Convert to fraction form
    20,210.24/30,149.60 = 18,796.16/x
  3. Step 3: Cross multiply
    20,210.24x = 30,149.60 × 18,796.16
  4. Step 4: Simplify right side
    20,210.24x = 566,696,705.54
  5. Step 5: Solve for x
    x = 566,696,705.54/20,210.24
  6. Step 6: Final answer
    x = 28,040.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.