Home / 26,676.72-39,931.20-18,307.80

Finding the Fourth Proportional to 26,676.72, 39,931.20 and 18,307.80

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Solution

The fourth proportional to 26,676.72, 39,931.20 and 18,307.80 is: 27,404.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,676.72 : 39,931.20 = 18,307.80 : x
  2. Step 2: Convert to fraction form
    26,676.72/39,931.20 = 18,307.80/x
  3. Step 3: Cross multiply
    26,676.72x = 39,931.20 × 18,307.80
  4. Step 4: Simplify right side
    26,676.72x = 731,052,423.36
  5. Step 5: Solve for x
    x = 731,052,423.36/26,676.72
  6. Step 6: Final answer
    x = 27,404.13

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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.