Home / 31,357.62-43,270.65-17,928.45

Finding the Fourth Proportional to 31,357.62, 43,270.65 and 17,928.45

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Solution

The fourth proportional to 31,357.62, 43,270.65 and 17,928.45 is: 24,739.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,357.62 : 43,270.65 = 17,928.45 : x
  2. Step 2: Convert to fraction form
    31,357.62/43,270.65 = 17,928.45/x
  3. Step 3: Cross multiply
    31,357.62x = 43,270.65 × 17,928.45
  4. Step 4: Simplify right side
    31,357.62x = 775,775,684.99
  5. Step 5: Solve for x
    x = 775,775,684.99/31,357.62
  6. Step 6: Final answer
    x = 24,739.62

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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.