Home / 20,627.36-28,454.90-13,060.34

Finding the Fourth Proportional to 20,627.36, 28,454.90 and 13,060.34

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Solution

The fourth proportional to 20,627.36, 28,454.90 and 13,060.34 is: 18,016.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,627.36 : 28,454.90 = 13,060.34 : x
  2. Step 2: Convert to fraction form
    20,627.36/28,454.90 = 13,060.34/x
  3. Step 3: Cross multiply
    20,627.36x = 28,454.90 × 13,060.34
  4. Step 4: Simplify right side
    20,627.36x = 371,630,567.80
  5. Step 5: Solve for x
    x = 371,630,567.80/20,627.36
  6. Step 6: Final answer
    x = 18,016.39

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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.