Home / 34,145.20-51,217.80-9,521.20

Finding the Fourth Proportional to 34,145.20, 51,217.80 and 9,521.20

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Solution

The fourth proportional to 34,145.20, 51,217.80 and 9,521.20 is: 14,281.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,145.20 : 51,217.80 = 9,521.20 : x
  2. Step 2: Convert to fraction form
    34,145.20/51,217.80 = 9,521.20/x
  3. Step 3: Cross multiply
    34,145.20x = 51,217.80 × 9,521.20
  4. Step 4: Simplify right side
    34,145.20x = 487,654,917.36
  5. Step 5: Solve for x
    x = 487,654,917.36/34,145.20
  6. Step 6: Final answer
    x = 14,281.80

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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.