Home / 49,849.12-74,787.80-20,288.17

Finding the Fourth Proportional to 49,849.12, 74,787.80 and 20,288.17

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Solution

The fourth proportional to 49,849.12, 74,787.80 and 20,288.17 is: 30,438.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,849.12 : 74,787.80 = 20,288.17 : x
  2. Step 2: Convert to fraction form
    49,849.12/74,787.80 = 20,288.17/x
  3. Step 3: Cross multiply
    49,849.12x = 74,787.80 × 20,288.17
  4. Step 4: Simplify right side
    49,849.12x = 1,517,307,464.08
  5. Step 5: Solve for x
    x = 1,517,307,464.08/49,849.12
  6. Step 6: Final answer
    x = 30,438.00

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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.