Home / 30,150.24-45,216.08-20,850

Finding the Fourth Proportional to 30,150.24, 45,216.08 and 20,850

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Solution

The fourth proportional to 30,150.24, 45,216.08 and 20,850 is: 31,268.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,150.24 : 45,216.08 = 20,850 : x
  2. Step 2: Convert to fraction form
    30,150.24/45,216.08 = 20,850/x
  3. Step 3: Cross multiply
    30,150.24x = 45,216.08 × 20,850
  4. Step 4: Simplify right side
    30,150.24x = 942,755,268
  5. Step 5: Solve for x
    x = 942,755,268/30,150.24
  6. Step 6: Final answer
    x = 31,268.58

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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.