Home / 30,681.54-42,340.32-17,252.82

Finding the Fourth Proportional to 30,681.54, 42,340.32 and 17,252.82

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Solution

The fourth proportional to 30,681.54, 42,340.32 and 17,252.82 is: 23,808.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,681.54 : 42,340.32 = 17,252.82 : x
  2. Step 2: Convert to fraction form
    30,681.54/42,340.32 = 17,252.82/x
  3. Step 3: Cross multiply
    30,681.54x = 42,340.32 × 17,252.82
  4. Step 4: Simplify right side
    30,681.54x = 730,489,919.70
  5. Step 5: Solve for x
    x = 730,489,919.70/30,681.54
  6. Step 6: Final answer
    x = 23,808.78

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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.