Home / 19,530.25-29,295.55-4,739.30

Finding the Fourth Proportional to 19,530.25, 29,295.55 and 4,739.30

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Solution

The fourth proportional to 19,530.25, 29,295.55 and 4,739.30 is: 7,108.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,530.25 : 29,295.55 = 4,739.30 : x
  2. Step 2: Convert to fraction form
    19,530.25/29,295.55 = 4,739.30/x
  3. Step 3: Cross multiply
    19,530.25x = 29,295.55 × 4,739.30
  4. Step 4: Simplify right side
    19,530.25x = 138,840,314.89
  5. Step 5: Solve for x
    x = 138,840,314.89/19,530.25
  6. Step 6: Final answer
    x = 7,108.99

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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.