Home / 30,481.28-45,718.56-10,756.16

Finding the Fourth Proportional to 30,481.28, 45,718.56 and 10,756.16

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Solution

The fourth proportional to 30,481.28, 45,718.56 and 10,756.16 is: 16,133.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,481.28 : 45,718.56 = 10,756.16 : x
  2. Step 2: Convert to fraction form
    30,481.28/45,718.56 = 10,756.16/x
  3. Step 3: Cross multiply
    30,481.28x = 45,718.56 × 10,756.16
  4. Step 4: Simplify right side
    30,481.28x = 491,756,146.33
  5. Step 5: Solve for x
    x = 491,756,146.33/30,481.28
  6. Step 6: Final answer
    x = 16,133.05

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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.