Home / 30,360.66-45,561.57-10,639.50

Finding the Fourth Proportional to 30,360.66, 45,561.57 and 10,639.50

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Solution

The fourth proportional to 30,360.66, 45,561.57 and 10,639.50 is: 15,966.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,360.66 : 45,561.57 = 10,639.50 : x
  2. Step 2: Convert to fraction form
    30,360.66/45,561.57 = 10,639.50/x
  3. Step 3: Cross multiply
    30,360.66x = 45,561.57 × 10,639.50
  4. Step 4: Simplify right side
    30,360.66x = 484,752,324.02
  5. Step 5: Solve for x
    x = 484,752,324.02/30,360.66
  6. Step 6: Final answer
    x = 15,966.46

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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.