Home / 30,171.10-45,197.78-19,751.26

Finding the Fourth Proportional to 30,171.10, 45,197.78 and 19,751.26

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Solution

The fourth proportional to 30,171.10, 45,197.78 and 19,751.26 is: 29,588.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,171.10 : 45,197.78 = 19,751.26 : x
  2. Step 2: Convert to fraction form
    30,171.10/45,197.78 = 19,751.26/x
  3. Step 3: Cross multiply
    30,171.10x = 45,197.78 × 19,751.26
  4. Step 4: Simplify right side
    30,171.10x = 892,713,104.20
  5. Step 5: Solve for x
    x = 892,713,104.20/30,171.10
  6. Step 6: Final answer
    x = 29,588.35

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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.