Home / 19,029.80-28,542.34-7,937.84

Finding the Fourth Proportional to 19,029.80, 28,542.34 and 7,937.84

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Solution

The fourth proportional to 19,029.80, 28,542.34 and 7,937.84 is: 11,905.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,029.80 : 28,542.34 = 7,937.84 : x
  2. Step 2: Convert to fraction form
    19,029.80/28,542.34 = 7,937.84/x
  3. Step 3: Cross multiply
    19,029.80x = 28,542.34 × 7,937.84
  4. Step 4: Simplify right side
    19,029.80x = 226,564,528.15
  5. Step 5: Solve for x
    x = 226,564,528.15/19,029.80
  6. Step 6: Final answer
    x = 11,905.78

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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.