Home / 31,423.68-47,161.44-12,968.64

Finding the Fourth Proportional to 31,423.68, 47,161.44 and 12,968.64

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Solution

The fourth proportional to 31,423.68, 47,161.44 and 12,968.64 is: 19,463.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,423.68 : 47,161.44 = 12,968.64 : x
  2. Step 2: Convert to fraction form
    31,423.68/47,161.44 = 12,968.64/x
  3. Step 3: Cross multiply
    31,423.68x = 47,161.44 × 12,968.64
  4. Step 4: Simplify right side
    31,423.68x = 611,619,737.24
  5. Step 5: Solve for x
    x = 611,619,737.24/31,423.68
  6. Step 6: Final answer
    x = 19,463.66

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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.