Home / 31,405.52-43,339.80-17,258.48

Finding the Fourth Proportional to 31,405.52, 43,339.80 and 17,258.48

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Solution

The fourth proportional to 31,405.52, 43,339.80 and 17,258.48 is: 23,816.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,405.52 : 43,339.80 = 17,258.48 : x
  2. Step 2: Convert to fraction form
    31,405.52/43,339.80 = 17,258.48/x
  3. Step 3: Cross multiply
    31,405.52x = 43,339.80 × 17,258.48
  4. Step 4: Simplify right side
    31,405.52x = 747,979,071.50
  5. Step 5: Solve for x
    x = 747,979,071.50/31,405.52
  6. Step 6: Final answer
    x = 23,816.80

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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.