Home / 19,539.12-29,323.32-12,154.44

Finding the Fourth Proportional to 19,539.12, 29,323.32 and 12,154.44

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Solution

The fourth proportional to 19,539.12, 29,323.32 and 12,154.44 is: 18,240.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,539.12 : 29,323.32 = 12,154.44 : x
  2. Step 2: Convert to fraction form
    19,539.12/29,323.32 = 12,154.44/x
  3. Step 3: Cross multiply
    19,539.12x = 29,323.32 × 12,154.44
  4. Step 4: Simplify right side
    19,539.12x = 356,408,533.54
  5. Step 5: Solve for x
    x = 356,408,533.54/19,539.12
  6. Step 6: Final answer
    x = 18,240.77

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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.