Home / 20,770.04-31,165.92-12,466.76

Finding the Fourth Proportional to 20,770.04, 31,165.92 and 12,466.76

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Solution

The fourth proportional to 20,770.04, 31,165.92 and 12,466.76 is: 18,706.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,770.04 : 31,165.92 = 12,466.76 : x
  2. Step 2: Convert to fraction form
    20,770.04/31,165.92 = 12,466.76/x
  3. Step 3: Cross multiply
    20,770.04x = 31,165.92 × 12,466.76
  4. Step 4: Simplify right side
    20,770.04x = 388,538,044.82
  5. Step 5: Solve for x
    x = 388,538,044.82/20,770.04
  6. Step 6: Final answer
    x = 18,706.66

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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.