Home / 30,057.28-45,056.62-12,532.12

Finding the Fourth Proportional to 30,057.28, 45,056.62 and 12,532.12

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Solution

The fourth proportional to 30,057.28, 45,056.62 and 12,532.12 is: 18,785.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,057.28 : 45,056.62 = 12,532.12 : x
  2. Step 2: Convert to fraction form
    30,057.28/45,056.62 = 12,532.12/x
  3. Step 3: Cross multiply
    30,057.28x = 45,056.62 × 12,532.12
  4. Step 4: Simplify right side
    30,057.28x = 564,654,871.66
  5. Step 5: Solve for x
    x = 564,654,871.66/30,057.28
  6. Step 6: Final answer
    x = 18,785.96

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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.