Home / 20,525.07-30,788.90-8,676.63

Finding the Fourth Proportional to 20,525.07, 30,788.90 and 8,676.63

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Solution

The fourth proportional to 20,525.07, 30,788.90 and 8,676.63 is: 13,015.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,525.07 : 30,788.90 = 8,676.63 : x
  2. Step 2: Convert to fraction form
    20,525.07/30,788.90 = 8,676.63/x
  3. Step 3: Cross multiply
    20,525.07x = 30,788.90 × 8,676.63
  4. Step 4: Simplify right side
    20,525.07x = 267,144,005.76
  5. Step 5: Solve for x
    x = 267,144,005.76/20,525.07
  6. Step 6: Final answer
    x = 13,015.50

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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.