Home / 21,721.73-32,582.13-6,930.45

Finding the Fourth Proportional to 21,721.73, 32,582.13 and 6,930.45

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Solution

The fourth proportional to 21,721.73, 32,582.13 and 6,930.45 is: 10,395.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,721.73 : 32,582.13 = 6,930.45 : x
  2. Step 2: Convert to fraction form
    21,721.73/32,582.13 = 6,930.45/x
  3. Step 3: Cross multiply
    21,721.73x = 32,582.13 × 6,930.45
  4. Step 4: Simplify right side
    21,721.73x = 225,808,822.86
  5. Step 5: Solve for x
    x = 225,808,822.86/21,721.73
  6. Step 6: Final answer
    x = 10,395.53

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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.