Home / 28,527.20-42,800.94-12,730.80

Finding the Fourth Proportional to 28,527.20, 42,800.94 and 12,730.80

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Solution

The fourth proportional to 28,527.20, 42,800.94 and 12,730.80 is: 19,100.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,527.20 : 42,800.94 = 12,730.80 : x
  2. Step 2: Convert to fraction form
    28,527.20/42,800.94 = 12,730.80/x
  3. Step 3: Cross multiply
    28,527.20x = 42,800.94 × 12,730.80
  4. Step 4: Simplify right side
    28,527.20x = 544,890,206.95
  5. Step 5: Solve for x
    x = 544,890,206.95/28,527.20
  6. Step 6: Final answer
    x = 19,100.73

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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.