Home / 31,458.26-43,420.91-18,548.79

Finding the Fourth Proportional to 31,458.26, 43,420.91 and 18,548.79

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Solution

The fourth proportional to 31,458.26, 43,420.91 and 18,548.79 is: 25,602.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,458.26 : 43,420.91 = 18,548.79 : x
  2. Step 2: Convert to fraction form
    31,458.26/43,420.91 = 18,548.79/x
  3. Step 3: Cross multiply
    31,458.26x = 43,420.91 × 18,548.79
  4. Step 4: Simplify right side
    31,458.26x = 805,405,248.45
  5. Step 5: Solve for x
    x = 805,405,248.45/31,458.26
  6. Step 6: Final answer
    x = 25,602.35

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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.