Home / 31,390.68-43,319.34-17,243.40

Finding the Fourth Proportional to 31,390.68, 43,319.34 and 17,243.40

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Solution

The fourth proportional to 31,390.68, 43,319.34 and 17,243.40 is: 23,796.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,390.68 : 43,319.34 = 17,243.40 : x
  2. Step 2: Convert to fraction form
    31,390.68/43,319.34 = 17,243.40/x
  3. Step 3: Cross multiply
    31,390.68x = 43,319.34 × 17,243.40
  4. Step 4: Simplify right side
    31,390.68x = 746,972,707.36
  5. Step 5: Solve for x
    x = 746,972,707.36/31,390.68
  6. Step 6: Final answer
    x = 23,796.00

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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.