Home / 30,105.10-45,168.13-13,466.89

Finding the Fourth Proportional to 30,105.10, 45,168.13 and 13,466.89

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Solution

The fourth proportional to 30,105.10, 45,168.13 and 13,466.89 is: 20,205.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,105.10 : 45,168.13 = 13,466.89 : x
  2. Step 2: Convert to fraction form
    30,105.10/45,168.13 = 13,466.89/x
  3. Step 3: Cross multiply
    30,105.10x = 45,168.13 × 13,466.89
  4. Step 4: Simplify right side
    30,105.10x = 608,274,311.51
  5. Step 5: Solve for x
    x = 608,274,311.51/30,105.10
  6. Step 6: Final answer
    x = 20,205.02

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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.