Home / 30,229.54-45,341.88-12,455.37

Finding the Fourth Proportional to 30,229.54, 45,341.88 and 12,455.37

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Solution

The fourth proportional to 30,229.54, 45,341.88 and 12,455.37 is: 18,682.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,229.54 : 45,341.88 = 12,455.37 : x
  2. Step 2: Convert to fraction form
    30,229.54/45,341.88 = 12,455.37/x
  3. Step 3: Cross multiply
    30,229.54x = 45,341.88 × 12,455.37
  4. Step 4: Simplify right side
    30,229.54x = 564,749,845.19
  5. Step 5: Solve for x
    x = 564,749,845.19/30,229.54
  6. Step 6: Final answer
    x = 18,682.05

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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.