Home / 30,664.91-42,318.78-17,236.13

Finding the Fourth Proportional to 30,664.91, 42,318.78 and 17,236.13

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Solution

The fourth proportional to 30,664.91, 42,318.78 and 17,236.13 is: 23,786.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,664.91 : 42,318.78 = 17,236.13 : x
  2. Step 2: Convert to fraction form
    30,664.91/42,318.78 = 17,236.13/x
  3. Step 3: Cross multiply
    30,664.91x = 42,318.78 × 17,236.13
  4. Step 4: Simplify right side
    30,664.91x = 729,411,717.29
  5. Step 5: Solve for x
    x = 729,411,717.29/30,664.91
  6. Step 6: Final answer
    x = 23,786.53

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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.