Home / 20,798.10-31,172.85-10,932.30

Finding the Fourth Proportional to 20,798.10, 31,172.85 and 10,932.30

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Solution

The fourth proportional to 20,798.10, 31,172.85 and 10,932.30 is: 16,385.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,798.10 : 31,172.85 = 10,932.30 : x
  2. Step 2: Convert to fraction form
    20,798.10/31,172.85 = 10,932.30/x
  3. Step 3: Cross multiply
    20,798.10x = 31,172.85 × 10,932.30
  4. Step 4: Simplify right side
    20,798.10x = 340,790,948.06
  5. Step 5: Solve for x
    x = 340,790,948.06/20,798.10
  6. Step 6: Final answer
    x = 16,385.68

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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.