Home / 19,187.80-28,695.30-16,077.40

Finding the Fourth Proportional to 19,187.80, 28,695.30 and 16,077.40

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Solution

The fourth proportional to 19,187.80, 28,695.30 and 16,077.40 is: 24,043.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,187.80 : 28,695.30 = 16,077.40 : x
  2. Step 2: Convert to fraction form
    19,187.80/28,695.30 = 16,077.40/x
  3. Step 3: Cross multiply
    19,187.80x = 28,695.30 × 16,077.40
  4. Step 4: Simplify right side
    19,187.80x = 461,345,816.22
  5. Step 5: Solve for x
    x = 461,345,816.22/19,187.80
  6. Step 6: Final answer
    x = 24,043.71

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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.