Home / 30,163.59-45,242.55-20,365.83

Finding the Fourth Proportional to 30,163.59, 45,242.55 and 20,365.83

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Solution

The fourth proportional to 30,163.59, 45,242.55 and 20,365.83 is: 30,546.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,163.59 : 45,242.55 = 20,365.83 : x
  2. Step 2: Convert to fraction form
    30,163.59/45,242.55 = 20,365.83/x
  3. Step 3: Cross multiply
    30,163.59x = 45,242.55 × 20,365.83
  4. Step 4: Simplify right side
    30,163.59x = 921,402,082.07
  5. Step 5: Solve for x
    x = 921,402,082.07/30,163.59
  6. Step 6: Final answer
    x = 30,546.83

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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.