Home / 18,676.48-28,032.30-12,440.89

Finding the Fourth Proportional to 18,676.48, 28,032.30 and 12,440.89

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Solution

The fourth proportional to 18,676.48, 28,032.30 and 12,440.89 is: 18,673.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,676.48 : 28,032.30 = 12,440.89 : x
  2. Step 2: Convert to fraction form
    18,676.48/28,032.30 = 12,440.89/x
  3. Step 3: Cross multiply
    18,676.48x = 28,032.30 × 12,440.89
  4. Step 4: Simplify right side
    18,676.48x = 348,746,760.75
  5. Step 5: Solve for x
    x = 348,746,760.75/18,676.48
  6. Step 6: Final answer
    x = 18,673.05

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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.