Home / 34,230.40-51,345.60-20,924.80

Finding the Fourth Proportional to 34,230.40, 51,345.60 and 20,924.80

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Solution

The fourth proportional to 34,230.40, 51,345.60 and 20,924.80 is: 31,387.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,230.40 : 51,345.60 = 20,924.80 : x
  2. Step 2: Convert to fraction form
    34,230.40/51,345.60 = 20,924.80/x
  3. Step 3: Cross multiply
    34,230.40x = 51,345.60 × 20,924.80
  4. Step 4: Simplify right side
    34,230.40x = 1,074,396,410.88
  5. Step 5: Solve for x
    x = 1,074,396,410.88/34,230.40
  6. Step 6: Final answer
    x = 31,387.20

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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.