Home / 20,753.10-31,123.02-6,710.16

Finding the Fourth Proportional to 20,753.10, 31,123.02 and 6,710.16

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Solution

The fourth proportional to 20,753.10, 31,123.02 and 6,710.16 is: 10,063.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,753.10 : 31,123.02 = 6,710.16 : x
  2. Step 2: Convert to fraction form
    20,753.10/31,123.02 = 6,710.16/x
  3. Step 3: Cross multiply
    20,753.10x = 31,123.02 × 6,710.16
  4. Step 4: Simplify right side
    20,753.10x = 208,840,443.88
  5. Step 5: Solve for x
    x = 208,840,443.88/20,753.10
  6. Step 6: Final answer
    x = 10,063.10

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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.