Home / 30,192.56-45,274.22-12,657.68

Finding the Fourth Proportional to 30,192.56, 45,274.22 and 12,657.68

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Solution

The fourth proportional to 30,192.56, 45,274.22 and 12,657.68 is: 18,980.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,192.56 : 45,274.22 = 12,657.68 : x
  2. Step 2: Convert to fraction form
    30,192.56/45,274.22 = 12,657.68/x
  3. Step 3: Cross multiply
    30,192.56x = 45,274.22 × 12,657.68
  4. Step 4: Simplify right side
    30,192.56x = 573,066,299.35
  5. Step 5: Solve for x
    x = 573,066,299.35/30,192.56
  6. Step 6: Final answer
    x = 18,980.38

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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.