Home / 28,559.14-42,847.46-12,777.45

Finding the Fourth Proportional to 28,559.14, 42,847.46 and 12,777.45

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Solution

The fourth proportional to 28,559.14, 42,847.46 and 12,777.45 is: 19,170.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,559.14 : 42,847.46 = 12,777.45 : x
  2. Step 2: Convert to fraction form
    28,559.14/42,847.46 = 12,777.45/x
  3. Step 3: Cross multiply
    28,559.14x = 42,847.46 × 12,777.45
  4. Step 4: Simplify right side
    28,559.14x = 547,481,309.72
  5. Step 5: Solve for x
    x = 547,481,309.72/28,559.14
  6. Step 6: Final answer
    x = 19,170.09

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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.