Home / 30,728.66-42,406.29-17,300.36

Finding the Fourth Proportional to 30,728.66, 42,406.29 and 17,300.36

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Solution

The fourth proportional to 30,728.66, 42,406.29 and 17,300.36 is: 23,874.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,728.66 : 42,406.29 = 17,300.36 : x
  2. Step 2: Convert to fraction form
    30,728.66/42,406.29 = 17,300.36/x
  3. Step 3: Cross multiply
    30,728.66x = 42,406.29 × 17,300.36
  4. Step 4: Simplify right side
    30,728.66x = 733,644,083.26
  5. Step 5: Solve for x
    x = 733,644,083.26/30,728.66
  6. Step 6: Final answer
    x = 23,874.91

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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.