Home / 20,653.92-30,980.85-5,862.96

Finding the Fourth Proportional to 20,653.92, 30,980.85 and 5,862.96

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Solution

The fourth proportional to 20,653.92, 30,980.85 and 5,862.96 is: 8,794.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,653.92 : 30,980.85 = 5,862.96 : x
  2. Step 2: Convert to fraction form
    20,653.92/30,980.85 = 5,862.96/x
  3. Step 3: Cross multiply
    20,653.92x = 30,980.85 × 5,862.96
  4. Step 4: Simplify right side
    20,653.92x = 181,639,484.32
  5. Step 5: Solve for x
    x = 181,639,484.32/20,653.92
  6. Step 6: Final answer
    x = 8,794.43

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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.