Home / 30,629.17-42,277.13-18,529.66

Finding the Fourth Proportional to 30,629.17, 42,277.13 and 18,529.66

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Solution

The fourth proportional to 30,629.17, 42,277.13 and 18,529.66 is: 25,576.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,629.17 : 42,277.13 = 18,529.66 : x
  2. Step 2: Convert to fraction form
    30,629.17/42,277.13 = 18,529.66/x
  3. Step 3: Cross multiply
    30,629.17x = 42,277.13 × 18,529.66
  4. Step 4: Simplify right side
    30,629.17x = 783,380,844.68
  5. Step 5: Solve for x
    x = 783,380,844.68/30,629.17
  6. Step 6: Final answer
    x = 25,576.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.