Home / 20,741.52-28,623.86-12,676.48

Finding the Fourth Proportional to 20,741.52, 28,623.86 and 12,676.48

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Solution

The fourth proportional to 20,741.52, 28,623.86 and 12,676.48 is: 17,493.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,741.52 : 28,623.86 = 12,676.48 : x
  2. Step 2: Convert to fraction form
    20,741.52/28,623.86 = 12,676.48/x
  3. Step 3: Cross multiply
    20,741.52x = 28,623.86 × 12,676.48
  4. Step 4: Simplify right side
    20,741.52x = 362,849,788.81
  5. Step 5: Solve for x
    x = 362,849,788.81/20,741.52
  6. Step 6: Final answer
    x = 17,493.89

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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.