Home / 31,638.78-43,664.13-17,496.18

Finding the Fourth Proportional to 31,638.78, 43,664.13 and 17,496.18

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Solution

The fourth proportional to 31,638.78, 43,664.13 and 17,496.18 is: 24,146.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,638.78 : 43,664.13 = 17,496.18 : x
  2. Step 2: Convert to fraction form
    31,638.78/43,664.13 = 17,496.18/x
  3. Step 3: Cross multiply
    31,638.78x = 43,664.13 × 17,496.18
  4. Step 4: Simplify right side
    31,638.78x = 763,955,478.02
  5. Step 5: Solve for x
    x = 763,955,478.02/31,638.78
  6. Step 6: Final answer
    x = 24,146.17

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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.