Home / 28,128.46-42,213.46-13,337.44

Finding the Fourth Proportional to 28,128.46, 42,213.46 and 13,337.44

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Solution

The fourth proportional to 28,128.46, 42,213.46 and 13,337.44 is: 20,016.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,128.46 : 42,213.46 = 13,337.44 : x
  2. Step 2: Convert to fraction form
    28,128.46/42,213.46 = 13,337.44/x
  3. Step 3: Cross multiply
    28,128.46x = 42,213.46 × 13,337.44
  4. Step 4: Simplify right side
    28,128.46x = 563,019,489.94
  5. Step 5: Solve for x
    x = 563,019,489.94/28,128.46
  6. Step 6: Final answer
    x = 20,016.01

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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.