Home / 19,444.20-29,166.30-12,445.80

Finding the Fourth Proportional to 19,444.20, 29,166.30 and 12,445.80

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Solution

The fourth proportional to 19,444.20, 29,166.30 and 12,445.80 is: 18,668.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,444.20 : 29,166.30 = 12,445.80 : x
  2. Step 2: Convert to fraction form
    19,444.20/29,166.30 = 12,445.80/x
  3. Step 3: Cross multiply
    19,444.20x = 29,166.30 × 12,445.80
  4. Step 4: Simplify right side
    19,444.20x = 362,997,936.54
  5. Step 5: Solve for x
    x = 362,997,936.54/19,444.20
  6. Step 6: Final answer
    x = 18,668.70

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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.