Home / 31,235.40-43,099.80-17,806.68

Finding the Fourth Proportional to 31,235.40, 43,099.80 and 17,806.68

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Solution

The fourth proportional to 31,235.40, 43,099.80 and 17,806.68 is: 24,570.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,235.40 : 43,099.80 = 17,806.68 : x
  2. Step 2: Convert to fraction form
    31,235.40/43,099.80 = 17,806.68/x
  3. Step 3: Cross multiply
    31,235.40x = 43,099.80 × 17,806.68
  4. Step 4: Simplify right side
    31,235.40x = 767,464,346.66
  5. Step 5: Solve for x
    x = 767,464,346.66/31,235.40
  6. Step 6: Final answer
    x = 24,570.34

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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.