Home / 23,180.18-34,779.72-8,390.66

Finding the Fourth Proportional to 23,180.18, 34,779.72 and 8,390.66

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Solution

The fourth proportional to 23,180.18, 34,779.72 and 8,390.66 is: 12,589.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,180.18 : 34,779.72 = 8,390.66 : x
  2. Step 2: Convert to fraction form
    23,180.18/34,779.72 = 8,390.66/x
  3. Step 3: Cross multiply
    23,180.18x = 34,779.72 × 8,390.66
  4. Step 4: Simplify right side
    23,180.18x = 291,824,805.42
  5. Step 5: Solve for x
    x = 291,824,805.42/23,180.18
  6. Step 6: Final answer
    x = 12,589.41

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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.