Home / 28,453.24-42,666.20-13,447.86

Finding the Fourth Proportional to 28,453.24, 42,666.20 and 13,447.86

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Solution

The fourth proportional to 28,453.24, 42,666.20 and 13,447.86 is: 20,165.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,453.24 : 42,666.20 = 13,447.86 : x
  2. Step 2: Convert to fraction form
    28,453.24/42,666.20 = 13,447.86/x
  3. Step 3: Cross multiply
    28,453.24x = 42,666.20 × 13,447.86
  4. Step 4: Simplify right side
    28,453.24x = 573,769,084.33
  5. Step 5: Solve for x
    x = 573,769,084.33/28,453.24
  6. Step 6: Final answer
    x = 20,165.33

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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.