Home / 31,312.54-43,211.33-16,972.35

Finding the Fourth Proportional to 31,312.54, 43,211.33 and 16,972.35

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Solution

The fourth proportional to 31,312.54, 43,211.33 and 16,972.35 is: 23,421.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,312.54 : 43,211.33 = 16,972.35 : x
  2. Step 2: Convert to fraction form
    31,312.54/43,211.33 = 16,972.35/x
  3. Step 3: Cross multiply
    31,312.54x = 43,211.33 × 16,972.35
  4. Step 4: Simplify right side
    31,312.54x = 733,397,816.73
  5. Step 5: Solve for x
    x = 733,397,816.73/31,312.54
  6. Step 6: Final answer
    x = 23,421.86

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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.