Home / 30,418.45-45,632.92-13,557.45

Finding the Fourth Proportional to 30,418.45, 45,632.92 and 13,557.45

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Solution

The fourth proportional to 30,418.45, 45,632.92 and 13,557.45 is: 20,338.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,418.45 : 45,632.92 = 13,557.45 : x
  2. Step 2: Convert to fraction form
    30,418.45/45,632.92 = 13,557.45/x
  3. Step 3: Cross multiply
    30,418.45x = 45,632.92 × 13,557.45
  4. Step 4: Simplify right side
    30,418.45x = 618,665,836.98
  5. Step 5: Solve for x
    x = 618,665,836.98/30,418.45
  6. Step 6: Final answer
    x = 20,338.51

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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.