Home / 31,242.48-43,115.75-17,811.55

Finding the Fourth Proportional to 31,242.48, 43,115.75 and 17,811.55

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Solution

The fourth proportional to 31,242.48, 43,115.75 and 17,811.55 is: 24,580.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,242.48 : 43,115.75 = 17,811.55 : x
  2. Step 2: Convert to fraction form
    31,242.48/43,115.75 = 17,811.55/x
  3. Step 3: Cross multiply
    31,242.48x = 43,115.75 × 17,811.55
  4. Step 4: Simplify right side
    31,242.48x = 767,958,336.91
  5. Step 5: Solve for x
    x = 767,958,336.91/31,242.48
  6. Step 6: Final answer
    x = 24,580.58

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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.