Home / 31,638.65-43,659.14-17,490.38

Finding the Fourth Proportional to 31,638.65, 43,659.14 and 17,490.38

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Solution

The fourth proportional to 31,638.65, 43,659.14 and 17,490.38 is: 24,135.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,638.65 : 43,659.14 = 17,490.38 : x
  2. Step 2: Convert to fraction form
    31,638.65/43,659.14 = 17,490.38/x
  3. Step 3: Cross multiply
    31,638.65x = 43,659.14 × 17,490.38
  4. Step 4: Simplify right side
    31,638.65x = 763,614,643.33
  5. Step 5: Solve for x
    x = 763,614,643.33/31,638.65
  6. Step 6: Final answer
    x = 24,135.50

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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.