Home / 20,713.23-28,575.16-13,996.41

Finding the Fourth Proportional to 20,713.23, 28,575.16 and 13,996.41

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Solution

The fourth proportional to 20,713.23, 28,575.16 and 13,996.41 is: 19,308.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,713.23 : 28,575.16 = 13,996.41 : x
  2. Step 2: Convert to fraction form
    20,713.23/28,575.16 = 13,996.41/x
  3. Step 3: Cross multiply
    20,713.23x = 28,575.16 × 13,996.41
  4. Step 4: Simplify right side
    20,713.23x = 399,949,513.03
  5. Step 5: Solve for x
    x = 399,949,513.03/20,713.23
  6. Step 6: Final answer
    x = 19,308.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.