Home / 19,000.28-28,500.05-5,673.25

Finding the Fourth Proportional to 19,000.28, 28,500.05 and 5,673.25

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Solution

The fourth proportional to 19,000.28, 28,500.05 and 5,673.25 is: 8,509.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,000.28 : 28,500.05 = 5,673.25 : x
  2. Step 2: Convert to fraction form
    19,000.28/28,500.05 = 5,673.25/x
  3. Step 3: Cross multiply
    19,000.28x = 28,500.05 × 5,673.25
  4. Step 4: Simplify right side
    19,000.28x = 161,687,908.66
  5. Step 5: Solve for x
    x = 161,687,908.66/19,000.28
  6. Step 6: Final answer
    x = 8,509.76

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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.