Home / 34,169.60-51,254.40-20,172.80

Finding the Fourth Proportional to 34,169.60, 51,254.40 and 20,172.80

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Solution

The fourth proportional to 34,169.60, 51,254.40 and 20,172.80 is: 30,259.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,169.60 : 51,254.40 = 20,172.80 : x
  2. Step 2: Convert to fraction form
    34,169.60/51,254.40 = 20,172.80/x
  3. Step 3: Cross multiply
    34,169.60x = 51,254.40 × 20,172.80
  4. Step 4: Simplify right side
    34,169.60x = 1,033,944,760.32
  5. Step 5: Solve for x
    x = 1,033,944,760.32/34,169.60
  6. Step 6: Final answer
    x = 30,259.20

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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.