Home / 20,660.34-30,992.56-6,616.84

Finding the Fourth Proportional to 20,660.34, 30,992.56 and 6,616.84

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Solution

The fourth proportional to 20,660.34, 30,992.56 and 6,616.84 is: 9,925.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,660.34 : 30,992.56 = 6,616.84 : x
  2. Step 2: Convert to fraction form
    20,660.34/30,992.56 = 6,616.84/x
  3. Step 3: Cross multiply
    20,660.34x = 30,992.56 × 6,616.84
  4. Step 4: Simplify right side
    20,660.34x = 205,072,810.71
  5. Step 5: Solve for x
    x = 205,072,810.71/20,660.34
  6. Step 6: Final answer
    x = 9,925.92

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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.