Home / 19,579.20-29,349.50-12,539.22

Finding the Fourth Proportional to 19,579.20, 29,349.50 and 12,539.22

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Solution

The fourth proportional to 19,579.20, 29,349.50 and 12,539.22 is: 18,796.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,579.20 : 29,349.50 = 12,539.22 : x
  2. Step 2: Convert to fraction form
    19,579.20/29,349.50 = 12,539.22/x
  3. Step 3: Cross multiply
    19,579.20x = 29,349.50 × 12,539.22
  4. Step 4: Simplify right side
    19,579.20x = 368,019,774.69
  5. Step 5: Solve for x
    x = 368,019,774.69/19,579.20
  6. Step 6: Final answer
    x = 18,796.47

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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.