Home / 31,638.51-43,659.45-17,490.42

Finding the Fourth Proportional to 31,638.51, 43,659.45 and 17,490.42

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Solution

The fourth proportional to 31,638.51, 43,659.45 and 17,490.42 is: 24,135.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,638.51 : 43,659.45 = 17,490.42 : x
  2. Step 2: Convert to fraction form
    31,638.51/43,659.45 = 17,490.42/x
  3. Step 3: Cross multiply
    31,638.51x = 43,659.45 × 17,490.42
  4. Step 4: Simplify right side
    31,638.51x = 763,622,117.47
  5. Step 5: Solve for x
    x = 763,622,117.47/31,638.51
  6. Step 6: Final answer
    x = 24,135.84

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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.