Home / 30,168.10-45,191.76-14,388.49

Finding the Fourth Proportional to 30,168.10, 45,191.76 and 14,388.49

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Solution

The fourth proportional to 30,168.10, 45,191.76 and 14,388.49 is: 21,553.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,168.10 : 45,191.76 = 14,388.49 : x
  2. Step 2: Convert to fraction form
    30,168.10/45,191.76 = 14,388.49/x
  3. Step 3: Cross multiply
    30,168.10x = 45,191.76 × 14,388.49
  4. Step 4: Simplify right side
    30,168.10x = 650,241,186.84
  5. Step 5: Solve for x
    x = 650,241,186.84/30,168.10
  6. Step 6: Final answer
    x = 21,553.93

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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.