Home / 39,858.72-59,774.08-11,771.28

Finding the Fourth Proportional to 39,858.72, 59,774.08 and 11,771.28

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Solution

The fourth proportional to 39,858.72, 59,774.08 and 11,771.28 is: 17,652.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,858.72 : 59,774.08 = 11,771.28 : x
  2. Step 2: Convert to fraction form
    39,858.72/59,774.08 = 11,771.28/x
  3. Step 3: Cross multiply
    39,858.72x = 59,774.08 × 11,771.28
  4. Step 4: Simplify right side
    39,858.72x = 703,617,432.42
  5. Step 5: Solve for x
    x = 703,617,432.42/39,858.72
  6. Step 6: Final answer
    x = 17,652.79

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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.