Home / 30,158.55-45,215.96-20,273.31

Finding the Fourth Proportional to 30,158.55, 45,215.96 and 20,273.31

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Solution

The fourth proportional to 30,158.55, 45,215.96 and 20,273.31 is: 30,395.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,158.55 : 45,215.96 = 20,273.31 : x
  2. Step 2: Convert to fraction form
    30,158.55/45,215.96 = 20,273.31/x
  3. Step 3: Cross multiply
    30,158.55x = 45,215.96 × 20,273.31
  4. Step 4: Simplify right side
    30,158.55x = 916,677,072.66
  5. Step 5: Solve for x
    x = 916,677,072.66/30,158.55
  6. Step 6: Final answer
    x = 30,395.26

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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.