Home / 20,158.86-30,243.41-14,247.38

Finding the Fourth Proportional to 20,158.86, 30,243.41 and 14,247.38

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Solution

The fourth proportional to 20,158.86, 30,243.41 and 14,247.38 is: 21,374.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,158.86 : 30,243.41 = 14,247.38 : x
  2. Step 2: Convert to fraction form
    20,158.86/30,243.41 = 14,247.38/x
  3. Step 3: Cross multiply
    20,158.86x = 30,243.41 × 14,247.38
  4. Step 4: Simplify right side
    20,158.86x = 430,889,412.57
  5. Step 5: Solve for x
    x = 430,889,412.57/20,158.86
  6. Step 6: Final answer
    x = 21,374.69

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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.