Home / 19,422.80-29,148.60-12,846.80

Finding the Fourth Proportional to 19,422.80, 29,148.60 and 12,846.80

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Solution

The fourth proportional to 19,422.80, 29,148.60 and 12,846.80 is: 19,279.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,422.80 : 29,148.60 = 12,846.80 : x
  2. Step 2: Convert to fraction form
    19,422.80/29,148.60 = 12,846.80/x
  3. Step 3: Cross multiply
    19,422.80x = 29,148.60 × 12,846.80
  4. Step 4: Simplify right side
    19,422.80x = 374,466,234.48
  5. Step 5: Solve for x
    x = 374,466,234.48/19,422.80
  6. Step 6: Final answer
    x = 19,279.72

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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.