Home / 21,721.74-32,582.64-6,930.72

Finding the Fourth Proportional to 21,721.74, 32,582.64 and 6,930.72

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Solution

The fourth proportional to 21,721.74, 32,582.64 and 6,930.72 is: 10,396.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,721.74 : 32,582.64 = 6,930.72 : x
  2. Step 2: Convert to fraction form
    21,721.74/32,582.64 = 6,930.72/x
  3. Step 3: Cross multiply
    21,721.74x = 32,582.64 × 6,930.72
  4. Step 4: Simplify right side
    21,721.74x = 225,821,154.70
  5. Step 5: Solve for x
    x = 225,821,154.70/21,721.74
  6. Step 6: Final answer
    x = 10,396.09

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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.