Home / 23,138.10-34,658.55-12,737.70

Finding the Fourth Proportional to 23,138.10, 34,658.55 and 12,737.70

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Solution

The fourth proportional to 23,138.10, 34,658.55 and 12,737.70 is: 19,079.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,138.10 : 34,658.55 = 12,737.70 : x
  2. Step 2: Convert to fraction form
    23,138.10/34,658.55 = 12,737.70/x
  3. Step 3: Cross multiply
    23,138.10x = 34,658.55 × 12,737.70
  4. Step 4: Simplify right side
    23,138.10x = 441,470,212.34
  5. Step 5: Solve for x
    x = 441,470,212.34/23,138.10
  6. Step 6: Final answer
    x = 19,079.80

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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.