Home / 31,820.20-47,730.30-16,235.80

Finding the Fourth Proportional to 31,820.20, 47,730.30 and 16,235.80

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Solution

The fourth proportional to 31,820.20, 47,730.30 and 16,235.80 is: 24,353.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,820.20 : 47,730.30 = 16,235.80 : x
  2. Step 2: Convert to fraction form
    31,820.20/47,730.30 = 16,235.80/x
  3. Step 3: Cross multiply
    31,820.20x = 47,730.30 × 16,235.80
  4. Step 4: Simplify right side
    31,820.20x = 774,939,604.74
  5. Step 5: Solve for x
    x = 774,939,604.74/31,820.20
  6. Step 6: Final answer
    x = 24,353.70

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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.