Home / 23,178.72-34,779.78-9,148.80

Finding the Fourth Proportional to 23,178.72, 34,779.78 and 9,148.80

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Solution

The fourth proportional to 23,178.72, 34,779.78 and 9,148.80 is: 13,727.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,178.72 : 34,779.78 = 9,148.80 : x
  2. Step 2: Convert to fraction form
    23,178.72/34,779.78 = 9,148.80/x
  3. Step 3: Cross multiply
    23,178.72x = 34,779.78 × 9,148.80
  4. Step 4: Simplify right side
    23,178.72x = 318,193,251.26
  5. Step 5: Solve for x
    x = 318,193,251.26/23,178.72
  6. Step 6: Final answer
    x = 13,727.82

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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.