Home / 39,936.12-59,823.96-19,885.20

Finding the Fourth Proportional to 39,936.12, 59,823.96 and 19,885.20

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Solution

The fourth proportional to 39,936.12, 59,823.96 and 19,885.20 is: 29,787.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,936.12 : 59,823.96 = 19,885.20 : x
  2. Step 2: Convert to fraction form
    39,936.12/59,823.96 = 19,885.20/x
  3. Step 3: Cross multiply
    39,936.12x = 59,823.96 × 19,885.20
  4. Step 4: Simplify right side
    39,936.12x = 1,189,611,409.39
  5. Step 5: Solve for x
    x = 1,189,611,409.39/39,936.12
  6. Step 6: Final answer
    x = 29,787.86

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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.