Home / 28,652.88-43,045.20-20,353.08

Finding the Fourth Proportional to 28,652.88, 43,045.20 and 20,353.08

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Solution

The fourth proportional to 28,652.88, 43,045.20 and 20,353.08 is: 30,576.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,652.88 : 43,045.20 = 20,353.08 : x
  2. Step 2: Convert to fraction form
    28,652.88/43,045.20 = 20,353.08/x
  3. Step 3: Cross multiply
    28,652.88x = 43,045.20 × 20,353.08
  4. Step 4: Simplify right side
    28,652.88x = 876,102,399.22
  5. Step 5: Solve for x
    x = 876,102,399.22/28,652.88
  6. Step 6: Final answer
    x = 30,576.42

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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.