Home / 19,451.40-29,166.30-7,751.40

Finding the Fourth Proportional to 19,451.40, 29,166.30 and 7,751.40

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Solution

The fourth proportional to 19,451.40, 29,166.30 and 7,751.40 is: 11,622.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,451.40 : 29,166.30 = 7,751.40 : x
  2. Step 2: Convert to fraction form
    19,451.40/29,166.30 = 7,751.40/x
  3. Step 3: Cross multiply
    19,451.40x = 29,166.30 × 7,751.40
  4. Step 4: Simplify right side
    19,451.40x = 226,079,657.82
  5. Step 5: Solve for x
    x = 226,079,657.82/19,451.40
  6. Step 6: Final answer
    x = 11,622.80

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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.