Home / 34,080.84-47,020.62-20,647.80

Finding the Fourth Proportional to 34,080.84, 47,020.62 and 20,647.80

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Solution

The fourth proportional to 34,080.84, 47,020.62 and 20,647.80 is: 28,487.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,080.84 : 47,020.62 = 20,647.80 : x
  2. Step 2: Convert to fraction form
    34,080.84/47,020.62 = 20,647.80/x
  3. Step 3: Cross multiply
    34,080.84x = 47,020.62 × 20,647.80
  4. Step 4: Simplify right side
    34,080.84x = 970,872,357.64
  5. Step 5: Solve for x
    x = 970,872,357.64/34,080.84
  6. Step 6: Final answer
    x = 28,487.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.