Home / 31,343.94-47,004.08-12,617.60

Finding the Fourth Proportional to 31,343.94, 47,004.08 and 12,617.60

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Solution

The fourth proportional to 31,343.94, 47,004.08 and 12,617.60 is: 18,921.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,343.94 : 47,004.08 = 12,617.60 : x
  2. Step 2: Convert to fraction form
    31,343.94/47,004.08 = 12,617.60/x
  3. Step 3: Cross multiply
    31,343.94x = 47,004.08 × 12,617.60
  4. Step 4: Simplify right side
    31,343.94x = 593,078,381.70
  5. Step 5: Solve for x
    x = 593,078,381.70/31,343.94
  6. Step 6: Final answer
    x = 18,921.63

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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.