Home / 22,035.72-30,399.12-13,078.14

Finding the Fourth Proportional to 22,035.72, 30,399.12 and 13,078.14

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Solution

The fourth proportional to 22,035.72, 30,399.12 and 13,078.14 is: 18,041.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,035.72 : 30,399.12 = 13,078.14 : x
  2. Step 2: Convert to fraction form
    22,035.72/30,399.12 = 13,078.14/x
  3. Step 3: Cross multiply
    22,035.72x = 30,399.12 × 13,078.14
  4. Step 4: Simplify right side
    22,035.72x = 397,563,947.24
  5. Step 5: Solve for x
    x = 397,563,947.24/22,035.72
  6. Step 6: Final answer
    x = 18,041.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.