Home / 39,905.40-59,847.30-11,825.40

Finding the Fourth Proportional to 39,905.40, 59,847.30 and 11,825.40

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Solution

The fourth proportional to 39,905.40, 59,847.30 and 11,825.40 is: 17,734.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,905.40 : 59,847.30 = 11,825.40 : x
  2. Step 2: Convert to fraction form
    39,905.40/59,847.30 = 11,825.40/x
  3. Step 3: Cross multiply
    39,905.40x = 59,847.30 × 11,825.40
  4. Step 4: Simplify right side
    39,905.40x = 707,718,261.42
  5. Step 5: Solve for x
    x = 707,718,261.42/39,905.40
  6. Step 6: Final answer
    x = 17,734.90

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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.