Home / 13,888.83-20,847.89-13,575.39

Finding the Fourth Proportional to 13,888.83, 20,847.89 and 13,575.39

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Solution

The fourth proportional to 13,888.83, 20,847.89 and 13,575.39 is: 20,377.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,888.83 : 20,847.89 = 13,575.39 : x
  2. Step 2: Convert to fraction form
    13,888.83/20,847.89 = 13,575.39/x
  3. Step 3: Cross multiply
    13,888.83x = 20,847.89 × 13,575.39
  4. Step 4: Simplify right side
    13,888.83x = 283,018,169.55
  5. Step 5: Solve for x
    x = 283,018,169.55/13,888.83
  6. Step 6: Final answer
    x = 20,377.39

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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.