Home / 30,173.12-45,274.26-12,416.88

Finding the Fourth Proportional to 30,173.12, 45,274.26 and 12,416.88

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Solution

The fourth proportional to 30,173.12, 45,274.26 and 12,416.88 is: 18,631.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,173.12 : 45,274.26 = 12,416.88 : x
  2. Step 2: Convert to fraction form
    30,173.12/45,274.26 = 12,416.88/x
  3. Step 3: Cross multiply
    30,173.12x = 45,274.26 × 12,416.88
  4. Step 4: Simplify right side
    30,173.12x = 562,164,945.34
  5. Step 5: Solve for x
    x = 562,164,945.34/30,173.12
  6. Step 6: Final answer
    x = 18,631.31

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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.