Home / 31,234.80-46,852.20-20,737.20

Finding the Fourth Proportional to 31,234.80, 46,852.20 and 20,737.20

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Solution

The fourth proportional to 31,234.80, 46,852.20 and 20,737.20 is: 31,105.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,234.80 : 46,852.20 = 20,737.20 : x
  2. Step 2: Convert to fraction form
    31,234.80/46,852.20 = 20,737.20/x
  3. Step 3: Cross multiply
    31,234.80x = 46,852.20 × 20,737.20
  4. Step 4: Simplify right side
    31,234.80x = 971,583,441.84
  5. Step 5: Solve for x
    x = 971,583,441.84/31,234.80
  6. Step 6: Final answer
    x = 31,105.80

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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.