Home / 30,163.23-45,244.82-20,666.19

Finding the Fourth Proportional to 30,163.23, 45,244.82 and 20,666.19

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Solution

The fourth proportional to 30,163.23, 45,244.82 and 20,666.19 is: 30,999.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,163.23 : 45,244.82 = 20,666.19 : x
  2. Step 2: Convert to fraction form
    30,163.23/45,244.82 = 20,666.19/x
  3. Step 3: Cross multiply
    30,163.23x = 45,244.82 × 20,666.19
  4. Step 4: Simplify right side
    30,163.23x = 935,037,943.30
  5. Step 5: Solve for x
    x = 935,037,943.30/30,163.23
  6. Step 6: Final answer
    x = 30,999.26

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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.