Home / 20,243.16-30,404.76-12,254.08

Finding the Fourth Proportional to 20,243.16, 30,404.76 and 12,254.08

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Solution

The fourth proportional to 20,243.16, 30,404.76 and 12,254.08 is: 18,405.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,243.16 : 30,404.76 = 12,254.08 : x
  2. Step 2: Convert to fraction form
    20,243.16/30,404.76 = 12,254.08/x
  3. Step 3: Cross multiply
    20,243.16x = 30,404.76 × 12,254.08
  4. Step 4: Simplify right side
    20,243.16x = 372,582,361.42
  5. Step 5: Solve for x
    x = 372,582,361.42/20,243.16
  6. Step 6: Final answer
    x = 18,405.35

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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.