Home / 20,270.08-30,405.12-6,418

Finding the Fourth Proportional to 20,270.08, 30,405.12 and 6,418

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Solution

The fourth proportional to 20,270.08, 30,405.12 and 6,418 is: 9,627.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,270.08 : 30,405.12 = 6,418 : x
  2. Step 2: Convert to fraction form
    20,270.08/30,405.12 = 6,418/x
  3. Step 3: Cross multiply
    20,270.08x = 30,405.12 × 6,418
  4. Step 4: Simplify right side
    20,270.08x = 195,140,060.16
  5. Step 5: Solve for x
    x = 195,140,060.16/20,270.08
  6. Step 6: Final answer
    x = 9,627.00

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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.