Home / 20,123.10-30,184.65-19,977.30

Finding the Fourth Proportional to 20,123.10, 30,184.65 and 19,977.30

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Solution

The fourth proportional to 20,123.10, 30,184.65 and 19,977.30 is: 29,965.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,123.10 : 30,184.65 = 19,977.30 : x
  2. Step 2: Convert to fraction form
    20,123.10/30,184.65 = 19,977.30/x
  3. Step 3: Cross multiply
    20,123.10x = 30,184.65 × 19,977.30
  4. Step 4: Simplify right side
    20,123.10x = 603,007,808.45
  5. Step 5: Solve for x
    x = 603,007,808.45/20,123.10
  6. Step 6: Final answer
    x = 29,965.95

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.