Home / 31,405.79-43,339.50-17,258.33

Finding the Fourth Proportional to 31,405.79, 43,339.50 and 17,258.33

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Solution

The fourth proportional to 31,405.79, 43,339.50 and 17,258.33 is: 23,816.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,405.79 : 43,339.50 = 17,258.33 : x
  2. Step 2: Convert to fraction form
    31,405.79/43,339.50 = 17,258.33/x
  3. Step 3: Cross multiply
    31,405.79x = 43,339.50 × 17,258.33
  4. Step 4: Simplify right side
    31,405.79x = 747,967,393.04
  5. Step 5: Solve for x
    x = 747,967,393.04/31,405.79
  6. Step 6: Final answer
    x = 23,816.23

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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.