Home / 30,576.02-45,864-20,185.34

Finding the Fourth Proportional to 30,576.02, 45,864 and 20,185.34

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Solution

The fourth proportional to 30,576.02, 45,864 and 20,185.34 is: 30,277.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,576.02 : 45,864 = 20,185.34 : x
  2. Step 2: Convert to fraction form
    30,576.02/45,864 = 20,185.34/x
  3. Step 3: Cross multiply
    30,576.02x = 45,864 × 20,185.34
  4. Step 4: Simplify right side
    30,576.02x = 925,780,204.44
  5. Step 5: Solve for x
    x = 925,780,204.44/30,576.02
  6. Step 6: Final answer
    x = 30,277.99

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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.