Home / 19,240.30-28,870.43-14,558.90

Finding the Fourth Proportional to 19,240.30, 28,870.43 and 14,558.90

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Solution

The fourth proportional to 19,240.30, 28,870.43 and 14,558.90 is: 21,845.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,240.30 : 28,870.43 = 14,558.90 : x
  2. Step 2: Convert to fraction form
    19,240.30/28,870.43 = 14,558.90/x
  3. Step 3: Cross multiply
    19,240.30x = 28,870.43 × 14,558.90
  4. Step 4: Simplify right side
    19,240.30x = 420,321,703.33
  5. Step 5: Solve for x
    x = 420,321,703.33/19,240.30
  6. Step 6: Final answer
    x = 21,845.90

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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.