Home / 31,440-43,388.40-17,292.54

Finding the Fourth Proportional to 31,440, 43,388.40 and 17,292.54

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Solution

The fourth proportional to 31,440, 43,388.40 and 17,292.54 is: 23,864.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,440 : 43,388.40 = 17,292.54 : x
  2. Step 2: Convert to fraction form
    31,440/43,388.40 = 17,292.54/x
  3. Step 3: Cross multiply
    31,440x = 43,388.40 × 17,292.54
  4. Step 4: Simplify right side
    31,440x = 750,295,642.54
  5. Step 5: Solve for x
    x = 750,295,642.54/31,440
  6. Step 6: Final answer
    x = 23,864.37

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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.