Home / 23,420.30-35,121.62-7,621.18

Finding the Fourth Proportional to 23,420.30, 35,121.62 and 7,621.18

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Solution

The fourth proportional to 23,420.30, 35,121.62 and 7,621.18 is: 11,428.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,420.30 : 35,121.62 = 7,621.18 : x
  2. Step 2: Convert to fraction form
    23,420.30/35,121.62 = 7,621.18/x
  3. Step 3: Cross multiply
    23,420.30x = 35,121.62 × 7,621.18
  4. Step 4: Simplify right side
    23,420.30x = 267,668,119.16
  5. Step 5: Solve for x
    x = 267,668,119.16/23,420.30
  6. Step 6: Final answer
    x = 11,428.90

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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.