Home / 20,798.24-31,201.92-6,946.88

Finding the Fourth Proportional to 20,798.24, 31,201.92 and 6,946.88

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Solution

The fourth proportional to 20,798.24, 31,201.92 and 6,946.88 is: 10,421.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,798.24 : 31,201.92 = 6,946.88 : x
  2. Step 2: Convert to fraction form
    20,798.24/31,201.92 = 6,946.88/x
  3. Step 3: Cross multiply
    20,798.24x = 31,201.92 × 6,946.88
  4. Step 4: Simplify right side
    20,798.24x = 216,755,994.01
  5. Step 5: Solve for x
    x = 216,755,994.01/20,798.24
  6. Step 6: Final answer
    x = 10,421.84

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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.