Home / 31,839.55-47,760.90-12,119.64

Finding the Fourth Proportional to 31,839.55, 47,760.90 and 12,119.64

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Solution

The fourth proportional to 31,839.55, 47,760.90 and 12,119.64 is: 18,180.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,839.55 : 47,760.90 = 12,119.64 : x
  2. Step 2: Convert to fraction form
    31,839.55/47,760.90 = 12,119.64/x
  3. Step 3: Cross multiply
    31,839.55x = 47,760.90 × 12,119.64
  4. Step 4: Simplify right side
    31,839.55x = 578,844,914.08
  5. Step 5: Solve for x
    x = 578,844,914.08/31,839.55
  6. Step 6: Final answer
    x = 18,180.06

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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.