Home / 23,213.04-34,788.72-12,129.12

Finding the Fourth Proportional to 23,213.04, 34,788.72 and 12,129.12

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Solution

The fourth proportional to 23,213.04, 34,788.72 and 12,129.12 is: 18,177.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,213.04 : 34,788.72 = 12,129.12 : x
  2. Step 2: Convert to fraction form
    23,213.04/34,788.72 = 12,129.12/x
  3. Step 3: Cross multiply
    23,213.04x = 34,788.72 × 12,129.12
  4. Step 4: Simplify right side
    23,213.04x = 421,956,559.53
  5. Step 5: Solve for x
    x = 421,956,559.53/23,213.04
  6. Step 6: Final answer
    x = 18,177.57

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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.