Home / 30,152.10-41,606.19-18,216.30

Finding the Fourth Proportional to 30,152.10, 41,606.19 and 18,216.30

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Solution

The fourth proportional to 30,152.10, 41,606.19 and 18,216.30 is: 25,136.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,152.10 : 41,606.19 = 18,216.30 : x
  2. Step 2: Convert to fraction form
    30,152.10/41,606.19 = 18,216.30/x
  3. Step 3: Cross multiply
    30,152.10x = 41,606.19 × 18,216.30
  4. Step 4: Simplify right side
    30,152.10x = 757,910,838.90
  5. Step 5: Solve for x
    x = 757,910,838.90/30,152.10
  6. Step 6: Final answer
    x = 25,136.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.