Home / 30,173.92-45,260.34-12,412.74

Finding the Fourth Proportional to 30,173.92, 45,260.34 and 12,412.74

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Solution

The fourth proportional to 30,173.92, 45,260.34 and 12,412.74 is: 18,618.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,173.92 : 45,260.34 = 12,412.74 : x
  2. Step 2: Convert to fraction form
    30,173.92/45,260.34 = 12,412.74/x
  3. Step 3: Cross multiply
    30,173.92x = 45,260.34 × 12,412.74
  4. Step 4: Simplify right side
    30,173.92x = 561,805,060.64
  5. Step 5: Solve for x
    x = 561,805,060.64/30,173.92
  6. Step 6: Final answer
    x = 18,618.90

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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.