Home / 30,171.55-45,218.28-16,844.20

Finding the Fourth Proportional to 30,171.55, 45,218.28 and 16,844.20

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Solution

The fourth proportional to 30,171.55, 45,218.28 and 16,844.20 is: 25,244.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,171.55 : 45,218.28 = 16,844.20 : x
  2. Step 2: Convert to fraction form
    30,171.55/45,218.28 = 16,844.20/x
  3. Step 3: Cross multiply
    30,171.55x = 45,218.28 × 16,844.20
  4. Step 4: Simplify right side
    30,171.55x = 761,665,751.98
  5. Step 5: Solve for x
    x = 761,665,751.98/30,171.55
  6. Step 6: Final answer
    x = 25,244.50

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Double scale
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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.