Home / 31,312.44-43,211.34-16,972.38

Finding the Fourth Proportional to 31,312.44, 43,211.34 and 16,972.38

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Solution

The fourth proportional to 31,312.44, 43,211.34 and 16,972.38 is: 23,421.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,312.44 : 43,211.34 = 16,972.38 : x
  2. Step 2: Convert to fraction form
    31,312.44/43,211.34 = 16,972.38/x
  3. Step 3: Cross multiply
    31,312.44x = 43,211.34 × 16,972.38
  4. Step 4: Simplify right side
    31,312.44x = 733,399,282.79
  5. Step 5: Solve for x
    x = 733,399,282.79/31,312.44
  6. Step 6: Final answer
    x = 23,421.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.