Home / 29,089.78-43,612.80-19,706.20

Finding the Fourth Proportional to 29,089.78, 43,612.80 and 19,706.20

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Solution

The fourth proportional to 29,089.78, 43,612.80 and 19,706.20 is: 29,544.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,089.78 : 43,612.80 = 19,706.20 : x
  2. Step 2: Convert to fraction form
    29,089.78/43,612.80 = 19,706.20/x
  3. Step 3: Cross multiply
    29,089.78x = 43,612.80 × 19,706.20
  4. Step 4: Simplify right side
    29,089.78x = 859,442,559.36
  5. Step 5: Solve for x
    x = 859,442,559.36/29,089.78
  6. Step 6: Final answer
    x = 29,544.48

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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.