Home / 30,339.12-45,529.32-18,616.56

Finding the Fourth Proportional to 30,339.12, 45,529.32 and 18,616.56

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Solution

The fourth proportional to 30,339.12, 45,529.32 and 18,616.56 is: 27,937.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,339.12 : 45,529.32 = 18,616.56 : x
  2. Step 2: Convert to fraction form
    30,339.12/45,529.32 = 18,616.56/x
  3. Step 3: Cross multiply
    30,339.12x = 45,529.32 × 18,616.56
  4. Step 4: Simplify right side
    30,339.12x = 847,599,317.54
  5. Step 5: Solve for x
    x = 847,599,317.54/30,339.12
  6. Step 6: Final answer
    x = 27,937.51

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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.