Home / 31,243.42-43,113.77-17,815.24

Finding the Fourth Proportional to 31,243.42, 43,113.77 and 17,815.24

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Solution

The fourth proportional to 31,243.42, 43,113.77 and 17,815.24 is: 24,583.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,243.42 : 43,113.77 = 17,815.24 : x
  2. Step 2: Convert to fraction form
    31,243.42/43,113.77 = 17,815.24/x
  3. Step 3: Cross multiply
    31,243.42x = 43,113.77 × 17,815.24
  4. Step 4: Simplify right side
    31,243.42x = 768,081,944.29
  5. Step 5: Solve for x
    x = 768,081,944.29/31,243.42
  6. Step 6: Final answer
    x = 24,583.80

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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.