Home / 20,130.54-30,195.81-5,340.62

Finding the Fourth Proportional to 20,130.54, 30,195.81 and 5,340.62

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Solution

The fourth proportional to 20,130.54, 30,195.81 and 5,340.62 is: 8,010.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,130.54 : 30,195.81 = 5,340.62 : x
  2. Step 2: Convert to fraction form
    20,130.54/30,195.81 = 5,340.62/x
  3. Step 3: Cross multiply
    20,130.54x = 30,195.81 × 5,340.62
  4. Step 4: Simplify right side
    20,130.54x = 161,264,195.82
  5. Step 5: Solve for x
    x = 161,264,195.82/20,130.54
  6. Step 6: Final answer
    x = 8,010.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.