Home / 18,420.36-27,630.90-4,569

Finding the Fourth Proportional to 18,420.36, 27,630.90 and 4,569

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Solution

The fourth proportional to 18,420.36, 27,630.90 and 4,569 is: 6,853.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,420.36 : 27,630.90 = 4,569 : x
  2. Step 2: Convert to fraction form
    18,420.36/27,630.90 = 4,569/x
  3. Step 3: Cross multiply
    18,420.36x = 27,630.90 × 4,569
  4. Step 4: Simplify right side
    18,420.36x = 126,245,582.10
  5. Step 5: Solve for x
    x = 126,245,582.10/18,420.36
  6. Step 6: Final answer
    x = 6,853.59

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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.