Home / 31,688.13-43,728.96-17,347.62

Finding the Fourth Proportional to 31,688.13, 43,728.96 and 17,347.62

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Solution

The fourth proportional to 31,688.13, 43,728.96 and 17,347.62 is: 23,939.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,688.13 : 43,728.96 = 17,347.62 : x
  2. Step 2: Convert to fraction form
    31,688.13/43,728.96 = 17,347.62/x
  3. Step 3: Cross multiply
    31,688.13x = 43,728.96 × 17,347.62
  4. Step 4: Simplify right side
    31,688.13x = 758,593,364.14
  5. Step 5: Solve for x
    x = 758,593,364.14/31,688.13
  6. Step 6: Final answer
    x = 23,939.36

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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.